## Alphabetical List of Ahelp Files

Topic | Context | Summary | ||||
---|---|---|---|---|---|---|

A | absorptionedge | models | Optical model of an absorption edge. | |||

absorptiongaussian | models | Gaussian function for modeling absorption (equivalent width). | ||||

absorptionlorentz | models | Lorentz function for modeling absorption (equivalent width). | ||||

absorptionvoigt | models | Voigt function for modeling absorption (equivalent width). | ||||

accretiondisk | models | A model of emission due to an accretion disk. | ||||

add_model | modeling | Add a user-defined model class as a Sherpa model type | ||||

add_user_pars | modeling | Add parameters to a user-defined model | ||||

atten | models | Model the attenuation by the Inter-Stellar Medium (ISM). | ||||

B | bbodyfreq | models | A one-dimensional Blackbody model (frequency). | |||

bbody | models | A one-dimensional Blackbody model. | ||||

beta1d | models | One-dimensional beta model function. | ||||

beta2d | models | Two-dimensional beta model function. | ||||

blackbody | models | Emission from a black body as a function of wavelength. | ||||

box1d | models | One-dimensional box function. | ||||

box2d | models | Two-dimensional box function. | ||||

bpl1d | models | One-dimensional broken power-law function. | ||||

bremsstrahlung | models | Bremsstrahlung emission. | ||||

brokenpowerlaw | models | Broken power-law model. | ||||

C | calc_chisqr | utilities | Calculate the Chi Squared statistic contribution per bin | |||

calc_data_sum2d | utilities | Calculate the sum of observed image counts | ||||

calc_data_sum | utilities | Calculate the sum of observed data counts | ||||

calc_energy_flux | utilities | Calculate the unconvolved model energy flux | ||||

calc_ftest | utilities | Calculate the significance using the F test | ||||

calc_kcorr | utilities | Calculate the k correction for a spectral model. | ||||

calc_mlr | utilities | Calculate the Maximum Likelihood Ratio test | ||||

calc_model_sum2d | utilities | Calculate the convolved 2D model amplitudes | ||||

calc_model_sum | utilities | Calculate the sum of convolved model counts | ||||

calc_photon_flux | utilities | Calculate the unconvolved model photon flux | ||||

calc_source_sum2d | utilities | Calculate the unconvolved 2D model amplitudes | ||||

calc_source_sum | utilities | Calculate the sum of unconvolved model amplitudes | ||||

calc_stat_info | fitting | Returns goodness-of-fit statistics associated with a Sherpa data set. | ||||

calc_stat | utilities | Calculate the fit statistic by data set ID | ||||

cash | statistics | A maximum likelihood function. | ||||

ccm | models | Galactic extinction: the Cardelli, Clayton, and Mathis model. | ||||

chi2constvar | statistics | Chi-square statistic with constant variance computed from the counts data. | ||||

chi2datavar | statistics | Chi-square statistic with variance computed from the data. | ||||

chi2gehrels | statistics | Chi-square statistic with the Gehrels variance function. | ||||

chi2modvar | statistics | Chi-square statistic with variance computed from model amplitudes. | ||||

chi2xspecvar | statistics | Chi-square statistic with variance computed from data amplitudes. | ||||

chisquare | statistics | About the chi-square statistic. | ||||

clean | modeling | Erase data and model settings in a Sherpa session | ||||

conf | confidence | Estimate confidence intervals for selected thawed parameters based on confidence method | ||||

const1d | models | A constant model for one-dimensional data. | ||||

const2d | models | A constant model for two-dimensional data. | ||||

contour_data | visualization | Open a contour plot of a data set in ChIPS | ||||

contour_fit_resid | visualization | Create a contour plot of the fit and residuals | ||||

contour_fit | visualization | Send a contour plot of the fit | ||||

contour_kernel | psfs | Create a contour plot of a PSF kernel | ||||

contour_model | visualization | Open a contour plot of a data set model in ChIPS | ||||

contour_psf | psfs | Create a contour plot of a PSF | ||||

contour_ratio | visualization | Open a contour plot of a data-to-model ratio in ChIPS | ||||

contour_resid | visualization | Open a contour plot of data-minus-model residuals in ChIPS | ||||

contour_source | visualization | Create a contour plot of the source | ||||

contour | visualization | Open a contour plot in ChIPS | ||||

copy_data | data | Copy a data set by data ID to a new data ID (deep copy) | ||||

cos | models | One-dimensional cosine function. | ||||

covariance | confidence | Estimate confidence intervals for selected thawed parameters based on covariance method | ||||

create_model_component | modeling | Create a new model component | ||||

cstat | statistics | A maximum likelihood function from XSPEC | ||||

D | dataspace1d | data | Create a blank 1D dataset | |||

dataspace2d | data | Create a blank 2D dataset | ||||

datastack | data | Sherpa extension package for modeling stacks of data. | ||||

delete_bkg_model | modeling | Delete a background model | ||||

delete_data | data | Delete a data set by ID | ||||

delete_model_component | modeling | Delete a model component | ||||

delete_model | modeling | Delete a Sherpa model by model ID | ||||

delete_psf | psfs | Delete a PSF model | ||||

delta1d | models | One-dimensional delta function. | ||||

delta2d | models | Two-dimensional delta function. | ||||

dered | models | A de-reddening model. | ||||

devaucouleurs2d | models | Two-dimensional de Vaucouleurs model. | ||||

disk2d | models | Two-dimensional uniform disk model. | ||||

E | edge | models | Photoabsorption edge model. | |||

emissiongaussian | models | Gaussian function for modeling emission. | ||||

emissionlorentz | models | Lorentz function for modeling emission. | ||||

emissionvoigt | models | Voigt function for modeling emission. | ||||

eqwidth | utilities | Calculate the equivalent width of an emission or absorption line. | ||||

erfc | models | One-dimensional complementary error function. | ||||

erf | models | One-dimensional error function. | ||||

estimate_weighted_expmap | contrib | Return the estimated exposure map value by weighting an ARF by a spectral model. | ||||

exp10 | models | One-dimensional exponential function, base 10. | ||||

exp | models | One-dimensional exponential function. | ||||

F | fake_pha | data | Simulate an observed spectrum based on a theoretical model. | |||

fake | data | Simulate a generic data set with a chosen model and add noise | ||||

fit | fitting | Perform a fit using current optimization method and fit statistic. | ||||

fm | models | UV extinction curve: Fitzpatrick and Massa 1988. | ||||

freeze | modeling | Freeze model parameters, so they do not vary during a fit. | ||||

G | gamma | utilities | Calculate the Gamma function | |||

gauss1d | models | One-dimensional gaussian function. | ||||

gauss2d | models | Two-dimensional gaussian function. | ||||

get_analysis | utilities | Return the current units setting for a PHA data set | ||||

get_areascal | data | Return the source or background pixel fractional area scale | ||||

get_arf_plot | data | Return the data and preferences defining an ARF plot | ||||

get_arf | data | Return a source or background ARF by data set ID | ||||

get_axes | data | Return the alternate grid of a data set | ||||

get_backscal | data | Return the source or background extraction region area | ||||

get_bkg_plot | data | Return the data and preferences defining a background plot. | ||||

get_bkg_scale | data | Returns the complete background scaling factor | ||||

get_bkg | data | Return the background data, ARF, RMF, or model. | ||||

get_chart_spectrum | contrib | Return the model spectrum in the form required by ChaRT2 | ||||

get_chisqr_plot | statistics | Return the data and preferences defining a chi^2 plot | ||||

get_conf | confidence | Return information regarding the confidence method. | ||||

get_coord | data | Return the coordinate system of an image | ||||

get_counts | data | Return the dependent variable array (e.g., counts) of a data set | ||||

get_covar | confidence | Return settings or results for the covariance method. | ||||

get_data_plot | data | Return a plot, contour, or image of the data, or the associated preferences | ||||

get_data_prof_prefs | contrib | The plot preferences for radial or elliptical profiles of imaging data. | ||||

get_data_prof | contrib | Return the data used to create the radial or elliptical profile of imaging data. | ||||

get_data | data | Return details of a Sherpa data set by ID. | ||||

get_default_id | info | Return the default data set ID in a Sherpa session. | ||||

get_delchi_plot | statistics | Return the data and preferences defining a delta chi plot | ||||

get_delchi_prof_prefs | contrib | The plot preferences for radial or elliptical profiles of the residuals (data - model)/error to imaging data. | ||||

get_delchi_prof | contrib | Return the data used to create the radial or elliptical profile of the residuals (data - model)/error to imaging data. | ||||

get_dep | data | Return the dependent variable array (e.g., counts) of a data set | ||||

get_dims | data | Return the length of the x-dimension of a data set | ||||

get_draws | methods | Run the pyBLoCXS MCMC-based algorithm using the current sampler. | ||||

get_energy_flux_hist | plotting | Calculate a histogram of a simulated energy flux probability distribution | ||||

get_error | data | Return the total errors on the counts of a data set | ||||

get_exposure | data | Return the exposure time for a source or background data set | ||||

get_filter | filtering | Return the filter of a data set | ||||

get_fit_prof | contrib | Return the data used to create the radial or elliptical profile of fits to imaging data. | ||||

get_fit | fitting | Return model fit information associated with a Sherpa data set. | ||||

get_grouping | data | Obtain the grouping flags from a data set | ||||

get_indep | data | Return the independent variable array of a data set | ||||

get_instmap_weights | contrib | Return the model spectrum in the form required by the spectrumfile parameter of mkinstmap | ||||

get_int_proj | confidence | Return the confidence data defining an interval projection plot | ||||

get_int_unc | confidence | Return the confidence data defining an int_unc() plot | ||||

get_iter_method_name | methods | Return the name of the current iterative fitting method | ||||

get_iter_method_opt | methods | Return the value of the specified option for the current iterative fitting method | ||||

get_kernel | psfs | Return kernel plot, image, and contour preferences. | ||||

get_lrt_plot | plotting | Access a histogram plot of likelihood ratio test results. | ||||

get_lrt_results | plotting | Access the simulation results of the likelihood ratio test. | ||||

get_marx_spectrum | contrib | Return the model spectrum in the form required by MARX | ||||

get_method | methods | Return information on the optimization method | ||||

get_model_autoassign_func | modeling | Return the method for storing model identifiers | ||||

get_model_component_image | modeling | Returns the 2D data and coordinate settings defining the convolved model component image | ||||

get_model_component_plot | modeling | Returns the data and preferences defining the convolved model component plot | ||||

get_model_component | modeling | Returns the parameters for the specified model component | ||||

get_model_plot | modeling | Return a plot, contour, or image of a model, or the associated preferences | ||||

get_model_prof_prefs | contrib | The plot preferences for radial or elliptical profiles of the model (after any PSF convolution) for imaging data. | ||||

get_model_prof | contrib | Return the data used to create the radial or elliptical profile of the source model (after any PSF convolution) for imaging data. | ||||

get_model | modeling | Return the model, model parameters, or model type | ||||

get_num_par | modeling | Returns the number of parameters (total, frozen, or thawed) in a model. | ||||

get_order_plot | modeling | Return the data and preferences defining a plot of model spectral orders | ||||

get_par | modeling | Returns a model parameter. | ||||

get_photon_flux_hist | plotting | Calculate a histogram of a simulated photon flux probability distribution | ||||

get_pileup_model | modeling | Return the pileup model associated with a data set. | ||||

get_prior | statistics | Access the prior function associated with a Sherpa model parameter. | ||||

get_proj | confidence | Return information regarding the projection method. | ||||

get_psf | psfs | Return PSF model data and plot, image, and contour preferences. | ||||

get_pvalue_plot | plotting | Access a histogram plot of likelihood ratio test results. | ||||

get_pvalue_results | plotting | Access the simulation results of the likelihood ratio test. | ||||

get_quality | data | Obtain the quality flags from a data set | ||||

get_rate | utilities | Return the measured count rate of a data set | ||||

get_ratio | visualization | Return information on the ratio of data and model. | ||||

get_reg_proj | confidence | Return the confidence data defining a region projection contour plot | ||||

get_reg_unc | confidence | Return the confidence data defining a reg_unc() contour plot | ||||

get_resid_prof_prefs | contrib | The plot preferences for radial or elliptical profiles of the residuals (data - model) to imaging data. | ||||

get_resid_prof | contrib | Return the data used to create the radial or elliptical profile of the residuals (data - model) to imaging data. | ||||

get_resid | visualization | Return information on a contour plot of the residuals of data and model. | ||||

get_response | modeling | Get the associated instrument response model of a PHA data set by data ID | ||||

get_rmf | data | Return a source or background RMF by data set ID | ||||

get_sampler | statistics | Return information on the current pyBLoCXS sampler. | ||||

get_source_component_image | modeling | Returns the 2D data and coordinate settings defining the unconvolved model component image | ||||

get_source_component_plot | modeling | Returns the data and preferences defining the unconvolved model component plot | ||||

get_source_prof_prefs | contrib | The plot preferences for radial or elliptical profiles of the source model for imaging data. | ||||

get_source_prof | contrib | Return the data used to create the radial or elliptical profile of the source model (before any PSF convolution) for imaging data. | ||||

get_source | modeling | Return the unconvolved model associated with a Sherpa data set ID. | ||||

get_specresp | data | Return the effective area of a PHA spectrum | ||||

get_split_plot | plotting | Return plot attributes for multiple plots | ||||

get_staterror | data | Return the statistical errors on the counts of a data set | ||||

get_stat_info | fitting | Parses the goodness-of-fit statistic information returned by calc_stat_info() | ||||

get_stat | statistics | Return information on the fit statistic | ||||

get_syserror | data | Return the systematic errors on the counts of a data set | ||||

gridsearch | methods | Grid searching optimization method | ||||

group | data | Enable and specify the grouping settings of a spectral data set | ||||

guess | modeling | Estimate initial parameter values and ranges | ||||

H | histogram1d | visualization | Create a 1D histogram from a binned grid and array of samples | |||

histogram2d | visualization | Create a 2D histogram from a pair of axes and a pair of sample arrays | ||||

hubblereynolds | models | Two-dimensional Hubble-Reynolds model. | ||||

I | igamc | utilities | Calculate the complement of the regularized incomplete Gamma function (upper) | |||

igam | utilities | Calculate the regularized incomplete Gamma function (lower) | ||||

ignore2d_id | filtering | Apply an exclude region filter to 2-D data by data set ID(s). | ||||

ignore2d | filtering | Apply an exclude region filter to all 2-D data sets | ||||

ignore_bad | filtering | Ignore bins according to quality flags | ||||

ignore_id | filtering | Apply an exclude filter to 1-D data by data set ID | ||||

ignore | filtering | Apply an exclude filter to all 1D data sets | ||||

image_close | visualization | Close the imager window (i.e., exit ds9). | ||||

image_data | visualization | Send image of 2-D data to ds9. | ||||

image_deleteframes | visualization | Delete frames in the imager window (ds9). | ||||

image_fit | visualization | Send image of the fit results to ds9. | ||||

image_getregion | visualization | Returns a region description from ds9. | ||||

image_kernel | psfs | Send a PSF kernel image to the imager (ds9). | ||||

image_model_component | modeling | Sends image of the convolved model component to ds9. | ||||

image_model | modeling | Send image of the model to ds9. | ||||

image_open | visualization | Open the imager window (i.e., start ds9). | ||||

image_psf | psfs | Send a PSF image to the imager (ds9). | ||||

image_ratio | visualization | Send image of the ratio (i.e., data/model) to ds9. | ||||

image_resid | visualization | Send image of the residuals (i.e., data - model) to ds9. | ||||

image_setregion | visualization | Sends a region description to ds9, where it is drawn in the current frame. | ||||

image_source_component | modeling | Sends image of the unconvolved model component to ds9. | ||||

image_source | modeling | Image the 2-D unconvolved model | ||||

image_xpaget | visualization | Retrieve data from ds9 using XPA. | ||||

image_xpaset | visualization | Send data to ds9 using XPA. | ||||

incbet | utilities | Calculate the incomplete Beta function | ||||

integrate1d | modeling | <Integrate1D model type> | ||||

integrate | modeling | Controlling the integration of model components | ||||

int_proj | confidence | Create a confidence plot of fit statistic vs. parameter value. | ||||

int_unc | confidence | Create a confidence plot of fit statistic vs. parameter value. | ||||

J | jdpileup | models | A CCD pileup model for the ACIS detectors on Chandra. | |||

L | leastsq | statistics | Chi-square statistic with variance set to 1. | |||

levmar | methods | Levenberg-Marquardt optimization method | ||||

lgam | utilities | Calculate the log of the Gamma function | ||||

linebroad | models | A one-dimensional line-broadening profile. | ||||

link | modeling | Link a model parameter to another model parameter. | ||||

list_bkg_ids | info | List all background IDs associated with a data set. | ||||

list_data_ids | info | List all data set IDs in a Sherpa session. | ||||

list_functions | info | List all available Sherpa functions | ||||

list_iter_methods | methods | List all Sherpa iterative fitting methods. | ||||

list_methods | methods | List all Sherpa optimization methods. | ||||

list_models | models | List all Sherpa models. | ||||

list_model_components | models | List all models established in a Sherpa session. | ||||

list_model_ids | info | List all current model IDs. | ||||

list_priors | statistics | List thawed Sherpa model parameters with associated priors. | ||||

list_response_ids | info | List all response IDs associated with a data set. | ||||

list_samplers | statistics | List all available pyBLoCXS samplers. | ||||

list_stats | info | List all Sherpa fit statistics. | ||||

lmc | models | LMC extinction: the Howarth model. | ||||

load_arf | data | Load a source or background ARF | ||||

load_arrays | data | Load data from variables containing arrays. | ||||

load_ascii | data | Load ASCII data | ||||

load_bkg_arf | data | Load a background ARF | ||||

load_bkg_rmf | data | Load a background RMF | ||||

load_bkg | data | Load a PHA background spectrum | ||||

load_conv | psfs | Load a 1D convolution kernel | ||||

load_data | data | Load 1D data from a file | ||||

load_filter | filtering | Load filter from a FITS table, FITS image, or ASCII file | ||||

load_grouping | data | Load a grouping scheme from a FITS table or ASCII file | ||||

load_image | data | Load an image | ||||

load_multi_arfs | data | Load multiple ARFs | ||||

load_multi_rmfs | data | Load multiple RMFs | ||||

load_pha | data | Load PHA source spectra | ||||

load_psf | psfs | Load a PSF model | ||||

load_quality | data | Load quality flags from a FITS table or ASCII file | ||||

load_rmf | data | Load a source or background RMF | ||||

load_staterror | data | Load statistical errors | ||||

load_syserror | data | Load systematic errors | ||||

load_table_model | modeling | Load a table model, including X-Spec atable and mtable forms | ||||

load_table | data | Load tabular data | ||||

load_template_model | modeling | Load a set of template models | ||||

load_user_model | modeling | Load a user-defined model | ||||

load_user_stat | statistics | Load a user-defined fit statistic | ||||

load_xscflux | models | calculate flux. XSpec convolution model *Experimental*. | ||||

load_xsclumin | models | calculate luminosity. XSpec convolution model *Experimental*. | ||||

load_xscpflux | models | calculate photon flux. XSpec convolution model *Experimental*. | ||||

load_xsgsmooth | models | gaussian smoothing. XSpec convolution model *Experimental*. | ||||

load_xsireflect | models | reflection from ionized material. XSpec convolution model *Experimental*. | ||||

load_xskdblur2 | models | convolve with the laor2 model shape. XSpec convolution model *Experimental*. | ||||

load_xskdblur | models | convolve with the laor model shape. XSpec convolution model *Experimental*. | ||||

load_xskerrconv | models | accretion disk line shape with BH spin as free parameter. XSpec convolution model *Experimental*. | ||||

load_xskyconv | models | convolution using a relativistic line from axisymmetric accretion disk. XSpec convolution model *Experimental*. | ||||

load_xslsmooth | models | lorentzian smoothing. XSpec convolution model *Experimental*. | ||||

load_xspartcov | models | partial covering. XSpec convolution model *Experimental*. | ||||

load_xsrdblur | models | convolve with the dislkine model shape. XSpec convolution model *Experimental*. | ||||

load_xsreflect | models | reflection from neutral material. XSpec convolution model *Experimental*. | ||||

load_xsrfxconv | models | angle-dependent reflection from an ionized disk. XSpec convolution model *Experimental*. | ||||

load_xsrgsxsrc | models | convolve an RGS spectrum for extended emission. XSpec convolution model *Experimental*. | ||||

load_xssimpl | models | comptonization of a seed spectrum. XSpec convolution model *Experimental*. | ||||

load_xsvashift | models | Velocity shift an additive model. XSpec convolution model *Experimental*. | ||||

load_xsvmshift | models | Velocity shift a multiplicative model. XSpec convolution model *Experimental*. | ||||

load_xsxilconv | models | angle-dependent reflection from an ionized disk XSpec convolution model *Experimental*. | ||||

load_xszashift | models | Redshift an additive model. XSpec convolution model *Experimental*. | ||||

load_xszmshift | models | Redshift a multiplicative model. XSpec convolution model *Experimental*. | ||||

log10 | models | One-dimensional logarithm function, base 10. | ||||

logabsorption | models | Gaussian function for modeling absorption (log of fwhm). | ||||

logemission | models | Gaussian function for modeling emission (log of fwhm). | ||||

logparabola | models | One-dimensional log-parabolic function. | ||||

log | models | One-dimensional natural logarithm function. | ||||

lorentz1d | models | One-dimensional normalized Lorentz model function. | ||||

lorentz2d | models | Two-dimensional un-normalised Lorentz function. | ||||

M | models | models | Summary of Sherpa models (excluding XSPEC) | |||

moncar | methods | Monte Carlo optimization method | ||||

N | neldermead | methods | Nelder-Mead Simplex optimization method | |||

normal_sample | modeling | Sample the current set of thawed parameters from a uni-variate or multi-variate normal distribution. | ||||

normbeta1d | models | One-dimensional normalized beta model function. | ||||

normgauss1d | models | One-dimensional normalised gaussian function. | ||||

normgauss2d | models | Two-dimensional normalised gaussian function. | ||||

notice2d_id | filtering | Apply an include filter to 2D data by dataset id | ||||

notice2d | filtering | Apply an include filter to all 2D datasets | ||||

notice_id | filtering | Apply an include filter to 1D data by dataset id | ||||

notice | filtering | Apply an include filter to all 1D datasets | ||||

O | opticalgaussian | models | Gaussian function for modeling absorption (optical depth). | |||

P | pack_image | data | Pack image data into an IMAGECrate | |||

pack_pha | data | Pack PHA data into a PHACrate | ||||

pack_table | data | Pack tabular data into a TABLECrate | ||||

paramprompt | modeling | Toggle parameter prompting for initial model values | ||||

plot_arf | plotting | Plot an ARF | ||||

plot_bkg | plotting | Plot information about background data | ||||

plot_cdf | plotting | Plot a cumulative distribution function with lower, median, and upper quantiles. | ||||

plot_chart_spectrum | contrib | Plot up the model spectrum in the form required by ChaRT | ||||

plot_chisqr | plotting | Plot the chi-squared statistic | ||||

plot_data | plotting | Plot the dataset | ||||

plot_delchi | plotting | Plot the delchi residuals of the fit: (data-model)/error | ||||

plot_energy_flux | plotting | Plot the calculated energy flux distribution | ||||

plot_fit | plotting | Plot the fit, fit plus delta chi, or fit plus residuals | ||||

plot_instmap_weights | contrib | Plot up the model spectrum in the form required by mkinstmap | ||||

plot_kernel | psfs | Plot the PSF kernel | ||||

plot_marx_spectrum | contrib | Plot up the model spectrum in the form required by MARX | ||||

plot_model_component | plotting | Plots individual convolved source model components | ||||

plot_model | plotting | Plot the convolved source model | ||||

plot_order | plotting | Plot the convolved source model by order | ||||

plot_pdf | plotting | Plot a binned probability density function. | ||||

plot_photon_flux | plotting | Plot the calculated photon flux distribution | ||||

plot_psf | psfs | Plot the PSF | ||||

plot_pvalue | plotting | Plot a histogram of likelihood ratio test results. | ||||

plot_ratio | plotting | Plot the (data/model) ratio | ||||

plot_resid | plotting | Plot the residuals of the fit: (data - model) | ||||

plot_scatter | plotting | Create an X,Y scatter plot. | ||||

plot_source_component | plotting | Plots individual unconvolved source model components | ||||

plot_source | plotting | Plot the unconvolved source model | ||||

plot_trace | plotting | Create a trace plot of iteration number vs. sampled value. | ||||

plot | plotting | Plot multiple objects (data, model, residuals, etc.) | ||||

poisson | models | One-dimensional Poisson function. | ||||

polynom1d | models | One-dimensional polynomial function of order 8. | ||||

polynom2d | models | Two-dimensional polynomial function. | ||||

polynomial | models | Polynomial model of order 5. | ||||

powerlaw | models | Power-law model. | ||||

powlaw1d | models | One-dimensional power-law function. | ||||

prof_data | contrib | Plot a radial or elliptical profile of imaging data. | ||||

prof_delchi | contrib | Plot a radial or elliptical profile of the residuals (data - model)/error to imaging data. | ||||

prof_fit_delchi | contrib | Plot a radial or elliptical profile of the fit (data and model) and residuals (data-model)/error to imaging data. | ||||

prof_fit_resid | contrib | Plot a radial or elliptical profile of the fit (data and model) and residuals (data-model) to imaging data. | ||||

prof_fit | contrib | Plot a radial or elliptical profile of the fit (data and model) to imaging data. | ||||

prof_model | contrib | Plot a radial or elliptical profile of the model (after any PSF convolution) for imaging data. | ||||

prof_resid | contrib | Plot a radial or elliptical profile of the residuals (data - model) to imaging data. | ||||

prof_source | contrib | Plot a radial or elliptical profile of the source model for imaging data. | ||||

projection | confidence | Estimate confidence intervals for selected thawed parameters based on projection method | ||||

pyblocxs | methods | MCMC-based algorithm for Bayesian Low-Count X-ray Spectral (BLoCXS) analysis | ||||

R | rebin | visualization | Rebin a histogram | |||

recombination | models | Optically-thin recombination continuum model. | ||||

reg_proj | confidence | Create a confidence contour of fit statistic vs. two thawed parameter values. | ||||

reg_unc | confidence | Create a confidence contour of fit statistic vs. two thawed parameter values. | ||||

renorm | contrib | Change the normalization of a model to match the data. | ||||

reset | modeling | Reset model parameter values after a fit | ||||

restore | saving | Restore a previous Sherpa session from a file | ||||

S | sample_energy_flux | utilities | Sample the energy flux distribution | |||

sample_flux | utilities | Return a sample of Sherpa model parameters and the corresponding unabsorbed energy flux and flux uncertainty | ||||

sample_photon_flux | utilities | Sample the photon flux distribution | ||||

save_all | saving | Save all the information about the current session | ||||

save_arrays | saving | Save a list of arrays as columns to a FITS table or ASCII file | ||||

save_chart_spectrum | contrib | Write out the model spectrum in the form required by ChaRT2 | ||||

save_data | saving | Save a Sherpa data set to an ASCII file. | ||||

save_delchi | saving | Save the delta chi fit residuals to a FITS table or ASCII file | ||||

save_error | saving | Save total errors to a FITS table or ASCII file | ||||

save_filter | saving | Save filter to a FITS table or ASCII file | ||||

save_grouping | saving | Save grouping flags to a FITS table or ASCII file | ||||

save_image | saving | Save image data to a file | ||||

save_instmap_weights | contrib | Write out the model spectrum in the form required by mkinstmap | ||||

save_marx_spectrum | contrib | Write out the model spectrum in the form required by MARX | ||||

save_model | modeling | Save the convolved source model to a FITS table or ASCII file | ||||

save_pha | saving | Save a Sherpa data set to a PHA file. | ||||

save_quality | saving | Save quality flags to a FITS table or ASCII file | ||||

save_resid | saving | Save the simple data-model difference residuals | ||||

save_source | modeling | Save the unconvolved source model to a FITS table or ASCII file | ||||

save_staterror | saving | Save statistical errors to a FITS table or ASCII file | ||||

save_syserror | saving | Save systematic errors to a FITS table or ASCII file | ||||

save_table | saving | Save a Sherpa data set to a FITS or ASCII file. | ||||

save | saving | Save the current Sherpa session to a file | ||||

scale1d | models | A constant model for one-dimensional data. | ||||

scale2d | models | A constant model for two-dimensional data. | ||||

schechter | models | One-dimensional Schecter model function. | ||||

script | saving | Save every command typed in a Sherpa or ChIPS session to a file. | ||||

seaton | models | Galactic extinction: the Seaton model from Synphot. | ||||

sersic2d | models | Two-dimensional Sersic model. | ||||

set_analysis | utilities | Set the units for spectral analysis | ||||

set_areascal | data | Set the fractional area | ||||

set_arf | data | Set an ARF dataset | ||||

set_backscal | data | Set the extraction region area | ||||

set_bkg_model | modeling | Set a background model expression | ||||

set_bkg | data | Set a background PHA dataset | ||||

set_conf_opt | confidence | Set the options for confidence | ||||

set_coord | data | Set the image coordinate system | ||||

set_counts | data | Set the dependent variable (e.g. counts) of a dataset | ||||

set_covar_opt | confidence | Set the options for covariance | ||||

set_data | data | Set a source dataset | ||||

set_default_id | utilities | Set the default Sherpa data id | ||||

set_exposure | data | Set the exposure time | ||||

set_filter | filtering | Apply user-defined filter to a data set | ||||

set_full_model | modeling | Set the complete convolved source and background model expressions to be used for fitting a data set | ||||

set_grouping | data | Apply user-defined grouping to a dataset | ||||

set_iter_method_opt | methods | Set the value of the specified option for the current iterative fitting method | ||||

set_iter_method | methods | Set the iterative fitting method | ||||

set_method_opt | methods | Set the options of the chosen optimization method | ||||

set_method | methods | Set the optimization method | ||||

set_model_autoassign_func | modeling | Define a method for storing model identifiers | ||||

set_par | modeling | Set initial values for a model parameter | ||||

set_pileup_model | modeling | Set a pileup model to be used in fitting a dataset | ||||

set_prior | statistics | Define a prior function for a particular Sherpa model parameter. | ||||

set_proj_opt | confidence | Set the options for projection | ||||

set_psf | psfs | Convolve the PSF model with the source model | ||||

set_quality | data | Apply user-defined quality flags to a data set | ||||

set_rmf | data | Set an RMF dataset | ||||

set_sampler_opt | statistics | Define sampler options for a pyBLoCXS chain. | ||||

set_sampler | statistics | Set the current pyBLoCXS sampler. | ||||

set_source | modeling | Set the source model expression to be used for fitting a dataset | ||||

set_staterror | data | Set the statistical errors | ||||

set_stat | statistics | Set the statistical method | ||||

set_syserror | data | Set the systematic errors | ||||

set_xlinear | plotting | Changes the plot X axis to use a linear scale. | ||||

set_xlog | plotting | Changes the plot x axis to use a logarithmic scale. | ||||

set_xsabund | modeling | Set XSPEC solar abundance | ||||

set_xscosmo | modeling | Set XSPEC cosmology settings (H0, q0, L0) | ||||

set_xsxsect | modeling | Set XSPEC photoelectric cross-section | ||||

set_xsxset | modeling | Set and get environment variables for XSPEC models | ||||

set_ylinear | plotting | Changes the plot Y axis to use a linear scale. | ||||

set_ylog | plotting | Changes the plot Y axis to use a logarithmic scale. | ||||

shell2d | models | A homogenous spherical 3D shell projected onto 2D. | ||||

sherparc | sherpa | The .sherpa.rc file provides user-configuration options for Sherpa | ||||

sherpa_chart | contrib | Create and view spectral files for ChaRT2 (CIAO contributed package). | ||||

sherpa_contrib | contrib | Contributed CIAO routines for Sherpa. | ||||

sherpa_marx | contrib | Create and view spectral files for MARX (CIAO contributed package). | ||||

sherpa_profiles | contrib | Radial profiles of imaging data in Sherpa (CIAO contributed package). | ||||

sherpa_utils | contrib | Utility routines for Sherpa (CIAO contributed package). | ||||

sherpa | sherpa | Introduction to Sherpa, the CIAO modeling and fitting package | ||||

show_all | info | Reports the current state of the Sherpa session | ||||

show_bkg_model | info | Display the background convolved model | ||||

show_bkg_source | info | Display the background unconvolved model | ||||

show_bkg | info | Display PHA background data set information | ||||

show_conf | info | Display the confidence information | ||||

show_covar | info | Display the covariance information | ||||

show_data | info | Display the data sets | ||||

show_filter | filtering | Display the filters applied to a dataset | ||||

show_fit | info | Display the fit information | ||||

show_kernel | psfs | Display the PSF kernel | ||||

show_method | info | Display the optimization method | ||||

show_model | info | Display the convolved source model | ||||

show_proj | info | Display the projection information | ||||

show_psf | psfs | Display the PSF model | ||||

show_source | info | Display the unconvolved source model | ||||

show_stat | info | Display the fit statistic | ||||

sigmagauss2d | models | Two-dimensional gaussian function (varying sigma). | ||||

sin | models | One-dimensional sine function. | ||||

smc | models | SMC extinction: the Prevot et al. 1984 model. | ||||

sm | models | Galactic extinction: the Savage & Mathis model. | ||||

sqrt | models | One-dimensional square root function. | ||||

stephi1d | models | One-dimensional step function. | ||||

steplo1d | models | One-dimensional step function. | ||||

subtract | data | Perform background subtraction | ||||

T | tablemodel | models | Using an n-dimensional array of values as a model (table model). | |||

tan | models | One-dimensional tan function. | ||||

thaw | modeling | Thaw model parameters so they vary during a fit | ||||

t_sample | modeling | Sample the current set of thawed parameters from a Student's t-distribution. | ||||

U | ungroup | data | Ungroup PHA data | |||

uniform_sample | modeling | Sample the current set of thawed parameters from a uniform distribution. | ||||

unlink | modeling | Remove a link between model parameters | ||||

unpack_arf | data | Unpack an ARF from an ARFCrate | ||||

unpack_arrays | data | Unpack arrays from a CrateData object | ||||

unpack_ascii | data | Unpack ASCII data from a crate | ||||

unpack_bkg | data | Unpack PHA data from a PHACrate | ||||

unpack_data | data | Unpack a table data, ASCII data, or a spectrum from a crate | ||||

unpack_image | data | Unpack image data from an IMAGECrate | ||||

unpack_pha | data | Unpack PHA data from a PHACrate | ||||

unpack_rmf | data | Unpack an RMF from a crate | ||||

unpack_table | data | Unpack tabular data from a TABLECrate | ||||

unsubtract | data | Undo background subtraction | ||||

W | wstat | statistics | A maximum likelihood function from XSPEC | |||

X | xgal | models | Extragalactic extinction: Calzetti, Kinney and Storchi-Bergmann | |||

xsabsori | models | The XSPEC absori model: ionized absorber. | ||||

xsacisabs | models | The XSPEC acisabs model: Chandra ACIS q.e. decay. | ||||

xsagauss | models | The XSPEC agauss model: gaussian line profile in wavelength space. | ||||

xsagnsed | models | The XSPEC agnsed model: AGN SED model | ||||

xsapec | models | The XSPEC apec model: APEC emission spectrum. | ||||

xsbapec | models | The XSPEC bapec model: velocity broadened APEC thermal plasma model. | ||||

xsbbodyrad | models | The XSPEC bbodyrad model: blackbody spectrum, area normalized. | ||||

xsbbody | models | The XSPEC bbody model: blackbody spectrum. | ||||

xsbexrav | models | The XSPEC bexrav model: reflected e-folded broken power law, neutral medium. | ||||

xsbexriv | models | The XSPEC bexriv model: reflected e-folded broken power law, ionized medium. | ||||

xsbkn2pow | models | The XSPEC bkn2pow model: broken power law with two breaks. | ||||

xsbknpower | models | The XSPEC bknpower model: broken power law. | ||||

xsbmc | models | The XSPEC bmc model: Comptonization by relativistic matter. | ||||

xsbremss | models | The XSPEC bremss model: thermal bremsstrahlung. | ||||

xsbrnei | models | The XSPEC brnei model: velocity-broadened non-equilibrium recombining collisional plasma. | ||||

xsbtapec | models | The XSPEC btapec model: velocity broadened APEC emission spectrum with separate continuum and line temperatures. | ||||

xsbvapec | models | The XSPEC bvapec model: velocity broadened APEC thermal plasma model. | ||||

xsbvrnei | models | The XSPEC bvrnei model: velocity-broadened non-equilibrium recombining collisional plasma. | ||||

xsbvtapec | models | The XSPEC bvtapec model: velocity broadened APEC emission spectrum with separate continuum and line temperatures. | ||||

xsbvvapec | models | The XSPEC bvvapec model: velocity broadened APEC thermal plasma model. | ||||

xsbvvrnei | models | The XSPEC bvvrnei model: velocity-broadened non-equilibrium recombining collisional plasma. | ||||

xsbvvtapec | models | The XSPEC bvvtapec model: velocity broadened APEC emission spectrum with separate continuum and line temperatures. | ||||

xsc6mekl | models | The XSPEC c6mekl model: differential emission measure using Chebyshev representations with multi-temperature mekal. | ||||

xsc6pmekl | models | The XSPEC c6pmekl model: differential emission measure using Chebyshev representations with multi-temperature mekal. | ||||

xsc6pvmkl | models | The XSPEC c6pvmkl model: differential emission measure using Chebyshev representations with multi-temperature mekal. | ||||

xsc6vmekl | models | The XSPEC c6vmekl model: differential emission measure using Chebyshev representations with multi-temperature mekal. | ||||

xscabs | models | The XSPEC cabs model: Optically-thin Compton scattering. | ||||

xscarbatm | models | The XSPEC carbatm model: Nonmagnetic carbon atmosphere of a neutron star. | ||||

xscemekl | models | The XSPEC cemekl model: plasma emission, multi-temperature using mekal. | ||||

xscevmkl | models | The XSPEC cevmkl model: plasma emission, multi-temperature using mekal. | ||||

xscflow | models | The XSPEC cflow model: cooling flow. | ||||

xscompbb | models | The XSPEC compbb model: Comptonization, black body. | ||||

xscompls | models | The XSPEC compLS model: Comptonization, Lamb & Sanford. | ||||

xscompmag | models | The XSPEC compmag model: Thermal and bulk Comptonization for cylindrical accretion onto the polar cap of a magnetized neutron star. | ||||

xscompps | models | The XSPEC compPS model: Comptonization, Poutanen & Svenson. | ||||

xscompst | models | The XSPEC compST model: Comptonization, Sunyaev & Titarchuk. | ||||

xscomptb | models | The XSPEC comptb model: Thermal and bulk Comptonization of a seed blackbody-like spectrum. | ||||

xscompth | models | The XSPEC compth model: Paolo Coppi's hybrid (thermal/non-thermal) hot plasma emission models. | ||||

xscomptt | models | The XSPEC compTT model: Comptonization, Titarchuk. | ||||

xsconstant | models | The XSPEC constant model: energy-independent factor. | ||||

xsconvolve | models | The XSpec convolution models *Experimental*. | ||||

xscph | models | The XSPEC cph model: Cooling + heating model for cool core clusters | ||||

xscplinear | models | The XSPEC cplinear model: a non-physical piecewise-linear model for low count background spectra. | ||||

xscutoffpl | models | The XSPEC cutoffpl model: power law, high energy exponential cutoff. | ||||

xscyclabs | models | The XSPEC cyclabs model: absorption line, cyclotron. | ||||

xsdiskbb | models | The XSPEC diskbb model: accretion disk, multi-black body components. | ||||

xsdiskir | models | The XSPEC diskir model: Irradiated inner and outer disk. | ||||

xsdiskline | models | The XSPEC diskline model: accretion disk line emission, relativistic. | ||||

xsdiskm | models | The XSPEC diskm model: accretion disk with gas pressure viscosity. | ||||

xsdisko | models | The XSPEC disko model: accretion disk, inner, radiation pressure viscosity. | ||||

xsdiskpbb | models | The XSPEC diskpbb model: accretion disk, power-law dependence for T(r). | ||||

xsdiskpn | models | The XSPEC diskpn model: accretion disk, black hole, black body. | ||||

xsdisk | models | The XSPEC disk model: accretion disk, black body. | ||||

xsdust | models | The XSPEC dust model: dust scattering. | ||||

xsedge | models | The XSPEC edge model: absorption edge. | ||||

xseplogpar | models | The XSPEC eplogpar model: log-parabolic blazar model with nu-Fnu normalization. | ||||

xseqpair | models | The XSPEC eqpair model: Paolo Coppi's hybrid (thermal/non-thermal) hot plasma emission models. | ||||

xseqtherm | models | The XSPEC eqtherm model: Paolo Coppi's hybrid (thermal/non-thermal) hot plasma emission models. | ||||

xsequil | models | The XSPEC equil model: collisional plasma, ionization equilibrium. | ||||

xsexpabs | models | The XSPEC expabs model: exponential roll-off at low E. | ||||

xsexpdec | models | The XSPEC expdec model: exponential decay. | ||||

xsexpfac | models | The XSPEC expfac model: exponential modification. | ||||

xsezdiskbb | models | The XSPEC ezdiskbb model: multiple blackbody disk model with zero-torque inner boundary. | ||||

xsgabs | models | The XSPEC gabs model: gaussian absorption line. | ||||

xsgadem | models | The XSPEC gadem model: plasma emission, multi-temperature with gaussian distribution of emission measure. | ||||

xsgaussian | models | The XSPEC gaussian model: gaussian line profile. | ||||

xsgnei | models | The XSPEC gnei model: collisional plasma, non-equilibrium, temperature evolution. | ||||

xsgrad | models | The XSPEC grad model: accretion disk, Schwarzschild black hole. | ||||

xsgrbcomp | models | The XSPEC grbcomp model: Comptonization for GRB prompt emission. | ||||

xsgrbm | models | The XSPEC grbm model: gamma-ray burst continuum. | ||||

xshatm | models | The XSPEC hatm model: Nonmagnetic hydrogen atmosphere of a neutron star. | ||||

xsheilin | models | The XSPEC heilin model: Voigt absorption profiles for He I series. | ||||

xshighecut | models | The XSPEC highecut model: high-energy cutoff. | ||||

xshrefl | models | The XSPEC hrefl model: reflection model. | ||||

xsismabs | models | The XSPEC ismabs model: A high resolution ISM absorption model with variable columns for individual ions. | ||||

xsjet | models | The XSPEC jet model: Leptonic relativistic jet model. | ||||

xskerrbb | models | The XSPEC kerrbb model: multi-temperature blackbody model for thin accretion disk around a Kerr black hole. | ||||

xskerrdisk | models | The XSPEC kerrdisk model: accretion disk line emission with BH spin as free parameter. | ||||

xskerrd | models | The XSPEC kerrd model: optically thick accretion disk around a Kerr black hole. | ||||

xskyrline | models | The XSPEC kyrline model: relativistic line from axisymmetric accretion disk | ||||

xslaor2 | models | The XSPEC laor2 model: accretion disk with broken-power law emissivity profile, black hole emission line. | ||||

xslaor | models | The XSPEC laor model: accretion disk, black hole emission line. | ||||

xslogpar | models | The XSPEC logpar model: log-parabolic blazar model. | ||||

xslorentz | models | The XSPEC lorentz model: lorentz line profile. | ||||

xslyman | models | The XSPEC lyman model: Voigt absorption profiles for H I or He II Lyman series. | ||||

xsmekal | models | The XSPEC mekal model: emission, hot diffuse gas (Mewe-Kaastra-Liedahl). | ||||

xsmeka | models | The XSPEC meka model: emission, hot diffuse gas (Mewe-Gronenschild). | ||||

xsmkcflow | models | The XSPEC mkcflow model: cooling flow, mekal. | ||||

xsnei | models | The XSPEC nei model: collisional plasma, non-equilibrium, constant temperature. | ||||

xsnlapec | models | The XSPEC nlapec model: continuum-only APEC emission spectrum. | ||||

xsnotch | models | The XSPEC notch model: absorption line, notch. | ||||

xsnpshock | models | The XSPEC npshock model: shocked plasma, plane parallel, separate ion, electron temperatures. | ||||

xsnsagrav | models | The XSPEC nsagrav model: NS H atmosphere model for different g. | ||||

xsnsatmos | models | The XSPEC nsatmos model: NS Hydrogen Atmosphere model with electron conduction and self-irradiation. | ||||

xsnsa | models | The XSPEC nsa model: neutron star atmosphere. | ||||

xsnsmaxg | models | The XSPEC nsmaxg model: neutron star with a magnetic atmosphere. | ||||

xsnsmax | models | The XSPEC nsmax model: Neutron Star Magnetic Atmosphere. | ||||

xsnsx | models | The XSPEC nsx model: neutron star with a non-magnetic atmosphere. | ||||

xsnteea | models | The XSPEC nteea model: non-thermal pair plasma. | ||||

xsnthcomp | models | The XSPEC nthComp model: Thermally comptonized continuum. | ||||

xsoptxagnf | models | The XSPEC optxagnf model: Colour temperature corrected disc and energetically coupled Comptonisation model for AGN. | ||||

xsoptxagn | models | The XSPEC optxagn model: Colour temperature corrected disc and energetically coupled Comptonisation model for AGN. | ||||

xspcfabs | models | The XSPEC pcfabs model: partial covering fraction absorption. | ||||

xspegpwrlw | models | The XSPEC pegpwrlw model: power law, pegged normalization. | ||||

xspexmon | models | The XSPEC pexmon model: neutral Compton reflection with self-consistent Fe and Ni lines. | ||||

xspexrav | models | The XSPEC pexrav model: reflected powerlaw, neutral medium. | ||||

xspexriv | models | The XSPEC pexriv model: reflected powerlaw, neutral medium. | ||||

xsphabs | models | The XSPEC phabs model: photoelectric absorption. | ||||

xsplabs | models | The XSPEC plabs model: power law absorption. | ||||

xsplcabs | models | The XSPEC plcabs model: powerlaw observed through dense, cold matter. | ||||

xsposm | models | The XSPEC posm model: positronium continuum. | ||||

xspowerlaw | models | The XSPEC powerlaw model: power law photon spectrum. | ||||

xspshock | models | The XSPEC pshock model: plane-parallel shocked plasma, constant temperature. | ||||

xspwab | models | The XSPEC pwab model: power-law distribution of neutral absorbers. | ||||

xsqsosed | models | The XSPEC qsosed model: AGN SED model | ||||

xsraymond | models | The XSPEC raymond model: emission, hot diffuse gas, Raymond-Smith. | ||||

xsredden | models | The XSPEC redden model: interstellar extinction. | ||||

xsredge | models | The XSPEC redge model: emission, recombination edge. | ||||

xsrefsch | models | The XSPEC refsch model: reflected power law from ionized accretion disk. | ||||

xsrnei | models | The XSPEC rnei model: non-equilibrium recombining collisional plasma. | ||||

xssedov | models | The XSPEC sedov model: sedov model, separate ion/electron temperature. | ||||

xssirf | models | The XSPEC sirf model: self-irradiated funnel. | ||||

xsslimbh | models | The XSPEC slimbh model: Stationary slim accretion disk. | ||||

xssmedge | models | The XSPEC smedge model: smeared edge. | ||||

xssnapec | models | The XSPEC snapec model: galaxy cluster spectrum using SN yields. | ||||

xsspexpcut | models | The XSPEC spexpcut model: super-exponential cutoff absorption. | ||||

xsspline | models | The XSPEC spline model: spline modification. | ||||

xssrcut | models | The XSPEC srcut model: synchrotron spectrum, cutoff power law. | ||||

xssresc | models | The XSPEC sresc model: synchrotron spectrum, cut off by particle escape. | ||||

xsssa | models | The XSPEC ssa model: Strangeon star atmosphere. | ||||

xssss_ice | models | The XSPEC sss_ice model: Einstein SSS ice absorption. | ||||

xsstep | models | The XSPEC step model: step function convolved with gaussian. | ||||

xsswind1 | models | The XSPEC swind1 model: absorption by partially ionized material with large velocity shear. | ||||

xstapec | models | The XSPEC tapec model: APEC emission spectrum with separate continuum and line temperatures. | ||||

xstbabs | models | The XSPEC TBabs model: ISM grain absorption. | ||||

xstbfeo | models | The XSPEC TBfeo model: ISM grain absorption. | ||||

xstbgas | models | The XSPEC TBgas model: ISM grain absorption. | ||||

xstbgrain | models | The XSPEC TBgrain model: ISM grain absorption. | ||||

xstbpcf | models | The XSPEC TBpcf model: ISM grain absorption. | ||||

xstbrel | models | The XSPEC TBrel model: ISM grain absorption. | ||||

xstbvarabs | models | The XSPEC TBvarabs model: ISM grain absorption. | ||||

xsuvred | models | The XSPEC uvred model: interstellar extinction, Seaton Law. | ||||

xsvapec | models | The XSPEC vapec model: APEC emission spectrum. | ||||

xsvarabs | models | The XSPEC varabs model: photoelectric absorption. | ||||

xsvbremss | models | The XSPEC vbremss model: thermal bremsstrahlung. | ||||

xsvcph | models | The XSPEC vcph model: Cooling + heating model for cool core clusters | ||||

xsvequil | models | The XSPEC vequil model: collisional plasma, ionization equilibrium. | ||||

xsvgadem | models | The XSPEC vgadem model: plasma emission, multi-temperature with gaussian distribution of emission measure. | ||||

xsvgnei | models | The XSPEC vgnei model: collisional plasma, non-equilibrium, temperature evolution. | ||||

xsvmcflow | models | The XSPEC vmcflow model: cooling flow, mekal. | ||||

xsvmekal | models | The XSPEC vmekal model: emission, hot diffuse gas (Mewe-Kaastra-Liedahl). | ||||

xsvmeka | models | The XSPEC vmeka model: emission, hot diffuse gas (Mewe-Gronenschild). | ||||

xsvnei | models | The XSPEC vnei model: collisional plasma, non-equilibrium, constant temperature. | ||||

xsvnpshock | models | The XSPEC vnpshock model: shocked plasma, plane parallel, separate ion, electron temperatures. | ||||

xsvoigt | models | The XSPEC voigt model: Voigt line profile. | ||||

xsvphabs | models | The XSPEC vphabs model: photoelectric absorption. | ||||

xsvpshock | models | The XSPEC vpshock model: plane-parallel shocked plasma, constant temperature. | ||||

xsvraymond | models | The XSPEC vraymond model: emission, hot diffuse gas, Raymond-Smith. | ||||

xsvrnei | models | The XSPEC vrnei model: non-equilibrium recombining collisional plasma. | ||||

xsvsedov | models | The XSPEC vsedov model: sedov model, separate ion/electron temperature. | ||||

xsvtapec | models | The XSPEC vtapec model: APEC emission spectrum with separate continuum and line temperatures. | ||||

xsvvapec | models | The XSPEC vvapec model: APEC emission spectrum. | ||||

xsvvgnei | models | The XSPEC vvgnei model: collisional plasma, non-equilibrium, temperature evolution. | ||||

xsvvnei | models | The XSPEC vvnei model: collisional plasma, non-equilibrium, constant temperature. | ||||

xsvvnpshock | models | The XSPEC vvnpshock model: shocked plasma, plane parallel, separate ion, electron temperatures. | ||||

xsvvpshock | models | The XSPEC vvpshock model: plane-parallel shocked plasma, constant temperature. | ||||

xsvvrnei | models | The XSPEC vvrnei model: non-equilibrium recombining collisional plasma. | ||||

xsvvsedov | models | The XSPEC vvsedov model: sedov model, separate ion/electron temperature. | ||||

xsvvtapec | models | The XSPEC vvtapec model: APEC emission spectrum with separate continuum and line temperatures. | ||||

xswabs | models | The XSPEC wabs model: photoelectric absorption, Wisconsin cross-sections. | ||||

xswndabs | models | The XSPEC wndabs model: photo-electric absorption, warm absorber. | ||||

xsxion | models | The XSPEC xion model: reflected spectrum of photo-ionized accretion disk/ring. | ||||

xsxscat | models | The XSPEC xscat model: dust scattering. | ||||

xszagauss | models | The XSPEC zagauss model: gaussian line profile in wavelength space. | ||||

xszbabs | models | The XSPEC zbabs model: EUV ISM attenuation. | ||||

xszbbody | models | The XSPEC zbbody model: blackbody spectrum. | ||||

xszbknpower | models | The XSPEC bknpower model: broken power law. | ||||

xszbremss | models | The XSPEC zbremss model: thermal bremsstrahlung. | ||||

xszcutoffpl | models | The XSPEC zcutoffpl model: power law, high energy exponential cutoff. | ||||

xszdust | models | The XSPEC zdust model: extinction by dust grains. | ||||

xszedge | models | The XSPEC zedge model: absorption edge. | ||||

xszgauss | models | The XSPEC zgauss model: gaussian line profile. | ||||

xszhighect | models | The XSPEC zhighect model: high-energy cutoff. | ||||

xszigm | models | The XSPEC zigm model: UV/Optical attenuation by the intergalactic medium. | ||||

xszlogpar | models | The XSPEC zlogpar model: log-parabolic blazar model. | ||||

xszpcfabs | models | The XSPEC zpcfabs model: partial covering fraction absorption. | ||||

xszphabs | models | The XSPEC zphabs model: photoelectric absorption. | ||||

xszpowerlw | models | The XSPEC zpowerlw model: redshifted power law photon spectrum. | ||||

xszredden | models | The XSPEC zredden model: redshifted version of redden. | ||||

xszsmdust | models | The XSPEC zsmdust model: extinction by dust grains in starburst galaxies. | ||||

xsztbabs | models | The XSPEC zTBabs model: ISM grain absorption. | ||||

xszvarabs | models | The XSPEC zvarabs model: photoelectric absorption. | ||||

xszvfeabs | models | The XSPEC zvfeabs model: photoelectric absorption with free Fe edge energy. | ||||

xszvphabs | models | The XSPEC zvphabs model: photoelectric absorption. | ||||

xszwabs | models | The XSPEC zwabs model: photoelectric absorption, Wisconsin cross-sections. | ||||

xszwndabs | models | The XSPEC zwndabs model: photo-electric absorption, warm absorber. | ||||

xszxipcf | models | The XSPEC zxipcf model: partial covering absorption by partially ionized material. | ||||

xs | models | XSPEC model functions. |