|
|
Super-exponential cutoff absorption.
XSpec model.
A high-energy super-exponential roll-off.
M(E) = exp(-(E/E_C)^alpha)
useful for fitting gamma-ray spectra of pulsars (see eg Nel & de Jager
1995).
Caveat : the absorption for an energy bin is calculated as the
arithmetic mean of the function value at the start and end energies of
the bin. If the energy bins are large this can be inaccurate and the
energies command should be used to define a finer energy grid on which
to calculate the model.
xsspexpcut Parameters
| 1 |
ecut |
E_C: e-folding energy for the absorption |
| 2 |
alpha |
exponent index |
This information is taken from the XSpec User's Guide. Version 12.5.0ab of the XSpec
models is supplied with CIAO 4.1.2.
For a list of known bugs and issues with the XSPEC models, please visit the XSPEC bugs page.
- py.sherpa
-
atten,
bbody,
bbodyfreq,
beta1d,
beta2d,
box1d,
box2d,
bpl1d,
const1d,
const2d,
cos,
delta1d,
delta2d,
dered,
devaucouleurs2d,
edge,
erf,
erfc,
exp,
exp10,
gauss1d,
gauss2d,
hubblereynolds,
jdpileup,
linebroad,
list_model_components,
list_models,
log,
log10,
lorentz1d,
lorentz2d,
models,
normbeta1d,
normgauss1d,
poisson,
polynom1d,
polynom2d,
powlaw1d,
schechter,
sin,
sqrt,
stephi1d,
steplo1d,
tablemodel,
tan,
xs,
xsabsori,
xsacisabs,
xsapec,
xsbapec,
xsbbody,
xsbbodyrad,
xsbexrav,
xsbexriv,
xsbkn2pow,
xsbknpower,
xsbmc,
xsbremss,
xsbvapec,
xsc6mekl,
xsc6pmekl,
xsc6pvmkl,
xsc6vmekl,
xscabs,
xscemekl,
xscevmkl,
xscflow,
xscompbb,
xscompls,
xscompps,
xscompst,
xscomptt,
xsconstant,
xscutoffpl,
xscyclabs,
xsdisk,
xsdiskbb,
xsdiskline,
xsdiskm,
xsdisko,
xsdiskpbb,
xsdiskpn,
xsdust,
xsedge,
xsequil,
xsexpabs,
xsexpdec,
xsexpfac,
xsezdiskbb,
xsgabs,
xsgaussian,
xsgnei,
xsgrad,
xsgrbm,
xshighecut,
xshrefl,
xskerrbb,
xskerrd,
xskerrdisk,
xslaor,
xslaor2,
xslorentz,
xsmeka,
xsmekal,
xsmkcflow,
xsnei,
xsnotch,
xsnpshock,
xsnsa,
xsnsagrav,
xsnsatmos,
xsnsmax,
xsnteea,
xsnthcomp,
xspcfabs,
xspegpwrlw,
xspexrav,
xspexriv,
xsphabs,
xsplabs,
xsplcabs,
xsposm,
xspowerlaw,
xspshock,
xspwab,
xsraymond,
xsredden,
xsredge,
xsrefsch,
xssedov,
xssmedge,
xsspline,
xssrcut,
xssresc,
xssss_ice,
xsstep,
xstbabs,
xstbgrain,
xstbvarabs,
xsuvred,
xsvapec,
xsvarabs,
xsvbremss,
xsvequil,
xsvgnei,
xsvmcflow,
xsvmeka,
xsvmekal,
xsvnei,
xsvnpshock,
xsvphabs,
xsvpshock,
xsvraymond,
xsvsedov,
xswabs,
xswndabs,
xsxion,
xszbbody,
xszbremss,
xszdust,
xszedge,
xszgauss,
xszhighect,
xszpcfabs,
xszphabs,
xszpowerlw,
xszredden,
xszsmdust,
xsztbabs,
xszvarabs,
xszvfeabs,
xszvphabs,
xszwabs,
xszwndabs
|
![[Sherpa Logo]](../imgs/sherpa_logo_navbar.gif){kind=logo}