Chandra X-Ray Observatory
	(CXC)


Cycle 3 Large Projects


Subject Category PI Name Title
BH AND NS BINARIESJONATHAN GRINDLAYCOMPLETE COMPACT OBJECT AND BINARY SURVEY OF 47TUC
SN, SNR AND ISOLATED NSSHRINIVAS KULKARNI A CHANDRA SURVEY FOR COMPACT OBJECTS IN SUPERNOVA REMNANTS
NORMAL GALAXIESFREDERICK. BAGANOFF MONITORING THE EXTREME X-RAY FLARING OF SAGITTARIUS A* AND A DEEP SURVEY OF THE CENTRAL 40 PC OF THE GALAXY
ACTIVE GALAXIES AND QUASARSGIUSEPPINA FABBIANOAN IN-DEPTH STUDY OF THE X-RAY SOURCE POPULATION AND HOT ISM OF THE ANTENNAE GALAXIES
ACTIVE GALAXIES AND QUASARS JELLE KAASTRA RESOLVING THE WARM ABSORBER IN NGC 5548
CLUSTERS OF GALAXIESHARALD EBELING MACS: THE X-RAY PROPERTIES OF THE MOST MASSIVE GALAXY CLUSTERS AT Z>0.3
EXTRAGALACTIC DIFFUSE EMISSION AND SURVEYS WILLIAM BRANDTTHE CHANDRA SURVEY OF THE HUBBLE DEEP FIELD NORTH AREA: A PUBLIC RESOURCE FOR THE PRESENT AND FUTURE OF X-RAY ASTRONOMY

BH AND NS BINARIES

Proposal Title: COMPLETE COMPACT OBJECT AND BINARY SURVEY OF 47TUC

PI: DR. JONATHAN E. GRINDLAY

Our cycle 1 observation of 47Tuc has shown its promise as the ultimate laboratory for study of the production and evolution of compact binaries and co mpact objects in globular clusters. We propose a deep (4 x 75ksec) ACIS-S obser vation to measure the complete populations of millisecond pulsars (MSPs) and ca taclysmic variables (CVs) by their variability and spectra and to constrain the main sequence binary population. Coordinated HST (ACS) data would provide uniq ue identifications of CVs and many MSPs and allow the full population of quiesc ent low mass x-ray binaries to be distinguished from CVs. This dataset would pr ovide fundamental constraints for the origins of neutron stars, millisecond pul sars, magnetic white dwarfs and compact binaries in globular clusters.

 proposal_number targname       ra        dec      instrument  grating  approved_exposure_time
 --------------- ------------------------------------------------------------------------------
 03400837        47 TUCANAE   6.024167  -72.080889   ACIS-S     NONE  69.000000
 03400837        47 TUCANAE   6.024167  -72.080889   ACIS-S     NONE  69.000000
 03400837        47 TUCANAE   6.024167  -72.080889   ACIS-S     NONE  69.000000
 03400837        47 TUCANAE   6.024167  -72.080889   ACIS-S     NONE  69.000000
 03400837        47 TUCANAE   6.024167  -72.080889   ACIS-S     NONE  5.000000
 03400837        47 TUCANAE   6.024167  -72.080889   ACIS-S     NONE  5.000000
 03400837        47 TUCANAE   6.024167  -72.080889   ACIS-S     NONE  5.000000
 03400837        47 TUCANAE   6.024167  -72.080889   ACIS-S     NONE  5.000000
 

SN, SNR AND ISOLATED NS

Proposal Title: A CHANDRA SURVEY FOR COMPACT OBJECTS IN SUPERNOVA REMNANTS

PI: PROF. SHRINIVAS R. KULKARNI

Observer: DAVID KAPLAN

It has become increasingly clear that the natal properties of young neu tron stars exhibit a rich diversity --- dramatically illustrated by the enigmat ic central object in Cas A and hinted at by early 3D modeling of core-collapse. We propose a survey of an objectively constructed sample of nearby SNRs which, when combined with archival data and our vigorous multi-wavelength observation program, will give us a reliable view of the true variety of neutron stars. Th e ensuing statistics and studies of the central objects will advance our unders tanding of core-collapse and have bearing on related topics (supernova energeti cs, natal kicks, etc). We believe that this comprehensive effort, a census of s uch objects within 5 kpc, will be one of the enduring legacies of the Chandra m ission.


 propnum     targname         ra        dec       instrument grating approved_exposure_time
 ----------- ---------------------------------------------------------------------------
  03500538   G127.1+0.5    22.133333   63.109444   ACIS-I     NONE    20.000000
  03500538   G166.0+4.2    81.704167   42.955278   ACIS-I     NONE    30.000000
  03500538   G315.4-2.3   220.708333  -62.472222   ACIS-I     NONE    10.000000
  03500538   G054.4-0.3   293.333333   18.978889   ACIS-I     NONE    25.000000
  03500538   G053.6-2.2   294.600000   17.292222   ACIS-I     NONE    35.000000
  03500538   G093.3+6.9   313.058333   55.341667   ACIS-I     NONE    15.000000
  03500538   G084.2-0.8   313.341667   42.455000   ACIS-I     NONE    25.000000
  03500538   G116.9+0.2   359.820833   62.448056   ACIS-I     NONE    50.000000
  03500538   G309.8+0.0   207.625000  -62.103611   ACIS-I     NONE    40.000000



NORMAL GALAXIES

Proposal Title: MONITORING THE EXTREME X-RAY FLARING OF SAGITTARIUS A* AND A DEEP SURVEY OF THE CENTRAL 40 PC OF THE GALAXY

PI: DR. FREDERICK K. BAGANOFF

In Cycle 1, we discovered the first clear evidence of X-ray emission fr om Sgr A*, the compact radio source associated with the massive black hole (MBH ) at the dynamical center of the Milky Way. In Cycle 2, we made the first detec tion of rapid, large-amplitude X-ray variability of Sgr A*. To gather unprecede nted information about the immediate environment of an MBH, we propose a 510-ks ACIS-I observation of Sgr A* to measure the quiescent-state emission spectrum and to characterize the timescales, duty cycle, energetics, and spectral evolut ion of the flares. Simultaneous monitoring with OVRO and VLBA are being propose d to search for correlated variations and lags predicted by theory to character ize the flaring state emission process. We will also obtain a deep survey in th is rich field.

 proposal_number targname   ra          dec      instrument  grating   approved_exposure_time
 --------------- -------------------------------------------------------------------
 03600940        SGR A*   266.416667  -29.007778   ACIS-I     NONE    170.00000
 03600940        SGR A*   266.416667  -29.007778   ACIS-I     NONE    170.00000
 03600940        SGR A*   266.416667  -29.007778   ACIS-I     NONE    170.00000

ACTIVE GALAXIES AND QUASARS

Proposal Title: AN IN-DEPTH STUDY OF THE X-RAY SOURCE POPULATION AND HOT ISM OF THE ANTENNAE GALAXIES

PI: DR. GIUSEPPINA FABBIANO

We propose a deep 375~ks observation of the prototypical merger galaxie s NGC~4038/39 (``The Antennae''), divided into 5 time segments. Together with t he archival data, we will obtain a deep 450ks ACIS-S exposure and time monitori ng over 3 yrs. The unique significance of the Antennae for our understanding of mergers and the extraordinary characteristics of the X-ray emission of this sy stem, make this study essential for probing a wide range of fundamental questio ns on the properties and evolution of XRBs, the range of black hole masses impl ied by the rich ULX population, the properties of the multiphase ISM, and the e volution of galaxy mergers, that cannot be addressed by looking at more normal galaxies.


 proposal_number targname          ra            dec     instrument grating approved_exposure_time
 --------------- --------------------------------------------------------------------------------
03700413        NGC 4038/NGC 4039  180.473750  -18.876528 ACIS-S     NONE  75.000000
03700413        NGC 4038/NGC 4039  180.473750  -18.876528 ACIS-S     NONE  75.000000
03700413        NGC 4038/NGC 4039  180.473750  -18.876528 ACIS-S     NONE  75.000000 
03700413        NGC 4038/NGC 4039  180.473750  -18.876528 ACIS-S     NONE  75.000000
03700413        NGC 4038/NGC 4039  180.473750  -18.876528 ACIS-S     NONE  75.000000

ACTIVE GALAXIES AND QUASARS

Proposal Title: RESOLVING THE WARM ABSORBER IN NGC 5548

PI: DR. JELLE S. KAASTRA

We propose to map the ionization and velocity structure of the X-ray an d UV absorbers in NGC 5548 with the LETGS and HETGS of Chandra and STIS/HST. NG C 5548 is an important target for this kind of study because 1) it shows multip le kinematic components in the UV characterized by a range in ionization parame ter and effective column, 2) it shows evidence for multiple kinematic and ioniz ation components in previous Chandra X-ray spectra, and 3) it has a low Galacti c column, which permits coverage of spectral lines out to 80 Angstrom with the LETGS. These data yield the ionization parameter and column density of the abso rption-line regions as a function of radial velocity, and constrain the element al abundances and shape of the unobserved EUV continuum.

proposal_number targname  ra          dec      instrument   grating  approved_exposure_time
 --------------- -----------------------------------------------------------------
 03700438     NGC 5548   214.498333  25.136778    HRC-S      LETG     175.000000
 03700438     NGC 5548   214.498333  25.136778   ACIS-S      HETG     170.000000
 03700438     NGC 5548   214.498333  25.136778    HRC-S      LETG     175.000000

CLUSTERS OF GALAXIES

Proposal Title: MACS: THE X-RAY PROPERTIES OF THE MOST MASSIVE GALAXY CLUSTERS AT Z>0.3

PI: DR. HARALD EBELING

We propose ACIS-I and HST observations of 30 distant and very X-ray lum inous clusters (z>0.3, Lx>1e45) detected in the MAssive Cluster Survey (MACS). 22 of these 30 are new discoveries. Our targets are the high-z counterparts of the best-studied local systems and, combined with 4 others scheduled for observ ation, form a statistical sample >10 times larger than any previous one in this redshift and luminosity range. Chandra's unique capabilities will allow us to obtain spatially resolved gas temperature and density maps to constrain both th e cosmological and physical parameters governing the evolution of the most mass ive clusters at z<0.5. The proposed observations are complemented by extensive groundbased follow-up studies of weak gravitational lensing, galaxy dynamics an d the SZ effect.




 proposal_number targname       ra           dec       instrument grating  approved_exposure_time
 --------------- --------------------------------------------------

 03800272   MACSJ0011.7-1523   2.928750   -15.389444   ACIS-I     NONE      22.000000
 03800272   MACSJ0035.4-2015   8.858750   -20.262222   ACIS-I     NONE      22.000000
 03800272   MACSJ0047.3-0810  11.840000    -8.155833   ACIS-I     NONE      14.000000
 03800272   MACSJ0152.5-2852  28.135833   -28.889444   ACIS-I     NONE      18.000000
 03800272   MACSJ0159.8-0849  29.955417    -8.833056   ACIS-I     NONE      18.000000
 03800272   MACSJ0242.5-2132  40.649583   -21.540556   ACIS-I     NONE      12.000000
 03800272   MACSJ0257.6-2209  44.423750   -22.153330   ACIS-I     NONE      20.000000
 03800272   MACSJ0308.9+2645  47.233333    26.760278   ACIS-I     NONE      25.000000
 03800272   MACSJ0404.6+1109  61.138333    11.132778   ACIS-I     NONE      24.000000
 03800272   MACSJ0417.5-1154  64.394583   -11.909167   ACIS-I     NONE      12.000000
 03800272   MACSJ0429.6-0253  67.400417    -2.885278   ACIS-I     NONE      24.000000
 03800272   MACSJ0520.7-1328  80.175000   -13.480000   ACIS-I     NONE      20.000000
 03800272   MACSJ0547.0-3904  86.756250   -39.074444   ACIS-I     NONE      22.000000
 03800272   MACSJ0949.8+1708 147.465833    17.119167   ACIS-I     NONE      15.000000
 03800272   MACSJ1115.8+0129 168.966250     1.498333   ACIS-I     NONE      16.000000
 03800272   MACSJ1131.8-1955 172.975833   -19.928333   ACIS-I     NONE      15.000000
 03800272   MACSJ1206.2-0847 181.550833    -8.801111   ACIS-I     NONE      24.000000
 03800272   MACSJ1319.9+7003 200.035417    70.077500   ACIS-I     NONE      20.000000
 03800272   MACSJ1427.6-2521 216.914583   -25.350833   ACIS-I     NONE      17.000000
 03800272   MACSJ1720.2+3536 260.070417    35.606944   ACIS-I     NONE      21.000000
 03800272   MACSJ1731.6+2252 262.916667    22.866111   ACIS-I     NONE      21.000000
 03800272   MACSJ1931.8-2634 292.957083   -26.576111   ACIS-I     NONE      14.000000
 03800272   MACSJ2049.9-3217 312.482917   -32.280278   ACIS-I     NONE      24.000000
 03800272   MACSJ2211.7-0349 332.941667    -3.829167   ACIS-I     NONE      18.000000
 03800272   MACSJ2228.5+2036 337.141250    20.621111   ACIS-I     NONE      21.000000
 03800272   MACSJ2229.7-2755 337.439167   -27.926944   ACIS-I     NONE      17.000000
 03800272   MACSJ2245.0+2637 341.270000    26.634444   ACIS-I     NONE      17.000000
 03800272   MACSJ2311.5+0338 347.888750     3.634444   ACIS-I     NONE      14.000000


EXTRAGALACTIC DIFFUSE EMISSION AND SURVEYS

Proposal Title: THE CHANDRA SURVEY OF THE HUBBLE DEEP FIELD NORTH AREA: A PUBLIC RESOURCE FOR THE PRESENT AND FUTURE OF X-RAY ASTRONOMY

PI: PROF. WILLIAM NIELSEN BRANDT

We propose to extend the Chandra deep survey of the HDF-N and its vicin ity. The ultimate goal is to obtain 5 Ms of coverage over the next 5 years; cur rently we have 1 Ms coverage. Here we propose two public 500 ks observations. T his project will fulfill one of Chandra's central design goals and will be a lo ng-lasting legacy of Chandra, laying the groundwork for the next generation of X-ray observatories. We should remain nearly photon limited for point-sources n ear the aim point. We will study obscured and high-redshift AGN, starbursts, no rmal galaxies, clusters, groups, and diffuse X-ray emission. The HDF-N field is the ideal region for multiwavelength follow-up studies due to the enormous dat abase already in place. Our ACIS team expertise will be extensively utilized.

 proposal_number targname  ra       dec       instrument grating approved_exposure_time
 --------------- --------------------------------------------------
 03900164        HDF-N  189.205833  62.216111 ACIS-I     NONE     166.700000
 03900164        HDF-N  189.205833  62.216111 ACIS-I     NONE     166.700000
 03900164        HDF-N  189.205833  62.216111 ACIS-I     NONE     166.700000
 03900164        HDF-N  189.205833  62.216111 ACIS-I     NONE     166.700000
 03900164        HDF-N  189.205833  62.216111 ACIS-I     NONE     166.700000
 03900164        HDF-N  189.205833  62.216111 ACIS-I     NONE     166.700000



Last modified: 12/02/10



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