Chandra X-Ray Observatory
	(CXC)

Chandra Large, Very Large and X-ray Visionary Projects

EXTRAGALACTIC DIFFUSE EMISSION & SURVEYS

Proposal NumberSubject CategoryPI NameTypeTime (ks)Title
02900196EXTRAGALACTIC DIFFUSE EMISSION AND SURVEYSBrandtLP475THE CHANDRA DEEP SURVEY OF THE HUBBLE DEEP FIELD NORTH (HDF-N) AREA
02900378EXTRAGALACTIC DIFFUSE EMISSION AND SURVEYSGIACCONILP1000AN ULTRADEEP SURVEY IN THE CHANDRA DEEP FIELD SOUTH
03900164EXTRAGALACTIC DIFFUSE EMISSION AND SURVEYSBrandtLP1000THE CHANDRA SURVEY OF THE HUBBLE DEEP FIELD NORTH AREA: A PUBLIC RESOURCE FOR THE PRESENT AND FUTURE OF X-RAY ASTRONOMY
04900340EXTRAGALACTIC DIFFUSE EMISSION AND SURVEYSJonesLP515A CHANDRA WIDE-FIELD SURVEY TO MAP THE COSMIC WEB AND INVESTIGATE THE EVOLUTION OF NUCLEAR ACCRETION
04901014EXTRAGALACTIC DIFFUSE EMISSION AND SURVEYSJonesLP25A CHANDRA WIDE-FIELD SURVEY TO MAP THE COSMIC WEB AND INVESTIGATE THE EVOLUTION OF NUCLEAR ACCRETION
05900218EXTRAGALACTIC DIFFUSE EMISSION AND SURVEYSBrandtVLP1980The Extended Chandra Deep Field-South Survey: A Public Chandra Legacy
05900547EXTRAGALACTIC DIFFUSE EMISSION AND SURVEYSWilkesLP630The Balance of Power between Starbursts and AGN: a Chandra/SIRTF Survey.
06900144EXTRAGALACTIC DIFFUSE EMISSION AND SURVEYSNicastroTOO/LP340Continuing X-Raying the Intergalactic Medium with Blazars in Outburst: Deeper in Redshift and Wider in Area.
06900444EXTRAGALACTIC DIFFUSE EMISSION AND SURVEYSNandraVLP1400Deep Chandra Imaging of the Extended Groth Strip: The Co-evolution of Black Holes and Galaxies
07900865EXTRAGALACTIC DIFFUSE EMISSION AND SURVEYSZappacostaTOO/LP300Searching for WHIM in Large-Scale Structures
08900073EXTRAGALACTIC DIFFUSE EMISSION AND SURVEYSElvisVLP1800THE CHANDRA-COSMOS SURVEY
08900745EXTRAGALACTIC DIFFUSE EMISSION AND SURVEYSAlexanderLP400The Chandra Deep Proto-cluster Field: Black-Hole Growth and Feedback in Dense Environments
08900784EXTRAGALACTIC DIFFUSE EMISSION AND SURVEYSTreuLP453.6The Duty Cycle of Supermassive Black Holes: X-raying Virgo
09900660EXTRAGALACTIC DIFFUSE EMISSION AND SURVEYSNandraVLP1800The Evolution of Faint AGN at High Redshift
10900836EXTRAGALACTIC DIFFUSE EMISSION AND SURVEYSFangLP500A Benchmark Observation of the Warm-Hot Intergalactic Medium
11900514EXTRAGALACTIC DIFFUSE EMISSION AND SURVEYSGultekinLP510COMBH: Chandra Observations of M-sigma Black Holes
12900343EXTRAGALACTIC DIFFUSE EMISSION AND SURVEYSNicastroLP500Securing a Detection of the Bulk of the Missing Baryons
12900635EXTRAGALACTIC DIFFUSE EMISSION AND SURVEYSWangLP335A CHandra survey of Extended Emission-line Regions in nearby Seyfert galaxies (CHEERS)
14900904EXTRAGALACTIC DIFFUSE EMISSION AND SURVEYSCivanoXVP2800The COSMOS Legacy Survey

Subject Category: EXTRAGALACTIC DIFFUSE EMISSION AND SURVEYS

Proposal Number: 02900196

Title: THE CHANDRA DEEP SURVEY OF THE HUBBLE DEEP FIELD NORTH (HDF-N) AREA

Type: LP Total Time: 475

PI Name: William Brandt

We propose to extend the Chandra X-ray survey of the HDF-N and its vicinity with a 475 ks exposure; this will give 1 Ms of total coverage on this field and will fulfill one of Chandra's central design goals. We should remain photon limited to 1 Ms and will probe the X-ray Universe more than four times deeper than any observation to date. We should resolve essentially all of the X-ray background from 0.5-8 keV and will study obscured and high-redshift active galaxies, advection dominated sources, starbursts, X-ray binaries, clusters and groups, and diffuse X-ray emission. The HDF-N field is an ideal one for multiwavelength follow-up studies due to the enormous database already in place. All data are to be placed in the public archive immediately and we will request no GO science funding.

R.A. Dec. Target Name Det. Grating Exp.Time
12:36:49.40+62:12:58.00HDF-NACIS-INONE475

Subject Category: EXTRAGALACTIC DIFFUSE EMISSION AND SURVEYS

Proposal Number: 02900378

Title: AN ULTRADEEP SURVEY IN THE CHANDRA DEEP FIELD SOUTH

Type: LP Total Time: 1000

PI Name: RICCARDO GIACCONI

We propose to exploit the unique combination of angular resolution, sensitivity and field-of-view of the Chandra ACIS imager to perform the deepest X-ray survey ever in the well-studied "Chandra Deep Field South" (CDFS). With a total integration time of 1.5 Msec (request for this AO: 1 Msec) we reach a 0.5-2 keV flux limit of 2E-17 cgs. We aim to detect >500 sources, i.e. AGN to z=10, clusters to z=3 and starburst galaxies to z~1. Simulations based on the existing 130 ksec observation in the CDFS and realistic source counts and correlation function models show, that Chandra exposures will not be background or confusion limited up to 3Msec. We propose to make the Chandra data public immediately.

R.A. Dec. Target Name Det. Grating Exp.Time
03:32:27.50-27:48:23.00CDFSACIS-INONE500

Subject Category: EXTRAGALACTIC DIFFUSE EMISSION AND SURVEYS

Proposal Number: 03900164

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

Type: LP Total Time: 1000

PI Name: William Brandt

We propose to extend the Chandra deep survey of the HDF-N and its vicinity. The ultimate goal is to obtain 5 Ms of coverage over the next 5 years; currently we have 1 Ms coverage. Here we propose two public 500 ks observations. This project will fulfill one of Chandra's central design goals and will be a long-lasting legacy of Chandra, laying the groundwork for the next generation of X-ray observatories. We should remain nearly photon limited for point-sources near the aim point. We will study obscured and high-redshift AGN, starbursts, normal 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 database already in place. Our ACIS team expertise will be extensively utilized.

R.A. Dec. Target Name Det. Grating Exp.Time
12:36:49.40+62:12:58.00HDF-NACIS-INONE1000

Subject Category: EXTRAGALACTIC DIFFUSE EMISSION AND SURVEYS

Proposal Number: 04900340

Title: A CHANDRA WIDE-FIELD SURVEY TO MAP THE COSMIC WEB AND INVESTIGATE THE EVOLUTION OF NUCLEAR ACCRETION

Type: LP Total Time: 515

PI Name: Christine Jones

We propose a wide-field X-ray imaging survey with deep and shallow components in order to map the structure and evolution of the Universe to redshift unity, and to probe the nature, environment and evolutionary history of AGN. The observations will cover the Bootes field of the NOAO Deep Wide-Field Survey, that is unique in its wide-field coverage and availability of deep multiwavelength imaging (including VLA and SIRTF) and optical spectroscopy. The Chandra survey is designed to sample volumes appropriate for statistical investigations of cluster environments, the space density of groups, biases in the optical and X-ray selection of groups and clusters, and AGN phenomena in relation to galaxy host properties and their evolution.

R.A. Dec. Target Name Det. Grating Exp.Time
14:25:44.40+32:56:47.40SS1ACIS-INONE5
14:27:00.60+32:56:47.40SS2ACIS-INONE5
14:28:16.90+32:56:47.40SS3ACIS-INONE5
14:29:33.20+32:56:47.40SS4ACIS-INONE5
14:30:49.50+32:56:47.40SS5ACIS-INONE5
14:33:22.00+32:56:47.40SS7ACIS-INONE5
14:34:38.30+32:56:47.40SS8ACIS-INONE5
14:35:54.50+32:56:47.40SS9ACIS-INONE5
14:37:10.80+32:56:47.40SS10ACIS-INONE5
14:38:27.00+32:56:47.40SS11ACIS-INONE5
14:25:43.20+33:12:47.50SS12ACIS-INONE5
14:26:59.70+33:12:47.50SS13ACIS-INONE5
14:28:16.20+33:12:47.50SS14ACIS-INONE5
14:29:32.70+33:12:47.50SS15ACIS-INONE5
14:30:49.20+33:12:47.50SD16ACIS-INONE5
14:32:05.70+33:12:47.50SD17ACIS-INONE5
14:34:38.70+33:12:47.50SS19ACIS-INONE5
14:35:55.20+33:12:47.50SS20ACIS-INONE5
14:37:11.70+33:12:47.50SS21ACIS-INONE5
14:38:28.20+33:12:47.50SS22ACIS-INONE5
14:25:42.10+33:28:47.60SS23ACIS-INONE5
14:26:58.80+33:28:47.60SS24ACIS-INONE5
14:28:15.50+33:28:47.60SS25ACIS-INONE5
14:29:32.30+33:28:47.60SS26ACIS-INONE5
14:30:49.00+33:28:47.60SD27ACIS-INONE5
14:32:05.70+33:28:47.60SD28ACIS-INONE5
14:33:22.50+33:28:47.60SD29ACIS-INONE5
14:35:55.90+33:28:47.60SS31ACIS-INONE5
14:37:12.60+33:28:47.60SS32ACIS-INONE5
14:38:29.40+33:28:47.60SS33ACIS-INONE5
14:25:40.90+33:44:47.40SS34ACIS-INONE5
14:26:57.80+33:44:47.40SS35ACIS-INONE5
14:28:14.80+33:44:47.40SS36ACIS-INONE5
14:29:31.80+33:44:47.40SS37ACIS-INONE5
14:30:48.70+33:44:47.40SD38ACIS-INONE5
14:32:05.70+33:44:47.40SD39ACIS-INONE5
14:33:22.70+33:44:47.40SD40ACIS-INONE5
14:34:39.60+33:44:47.40SD41ACIS-INONE5
14:37:13.60+33:44:47.40SS43ACIS-INONE5
14:38:30.60+33:44:47.40SS44ACIS-INONE5
14:25:39.70+34:00:47.50SS45ACIS-INONE5
14:26:56.90+34:00:47.50SS46ACIS-INONE5
14:28:14.10+34:00:47.50SS47ACIS-INONE5
14:29:31.30+34:00:47.50SS48ACIS-INONE5
14:30:48.50+34:00:47.50SD49ACIS-INONE5
14:32:05.70+34:00:47.50SD50ACIS-INONE5
14:33:22.90+34:00:47.50SD51ACIS-INONE5
14:34:40.20+34:00:47.50SD52ACIS-INONE5
14:35:57.40+34:00:47.50SS53ACIS-INONE5
14:37:14.60+34:00:47.50SS54ACIS-INONE5
14:38:31.80+34:00:47.50SS55ACIS-INONE5
14:33:22.20+33:12:47.50SD18ACIS-INONE5
14:34:39.20+33:28:47.60SD30ACIS-INONE5
14:35:56.60+33:44:47.40SS42ACIS-INONE5
14:32:05.70+32:56:47.40SS6ACIS-INONE5

Subject Category: EXTRAGALACTIC DIFFUSE EMISSION AND SURVEYS

Proposal Number: 04901014

Title: A CHANDRA WIDE-FIELD SURVEY TO MAP THE COSMIC WEB AND INVESTIGATE THE EVOLUTION OF NUCLEAR ACCRETION

Type: LP Total Time: 25

PI Name: Christine Jones

We propose a wide-field X-ray imaging survey with deep and shallow components in order to map the structure and evolution of the Universe to redshift unity, and to probe the nature, environment and evolutionary history of AGN. The observations will cover the Bootes field of the NOAO Deep Wide-Field Survey, that is unique in its wide-field coverage and availability of deep multi- wavelength imaging (including VLA and SIRTF) and optical spectroscopy. The Chandra survey is designed to sample volumes appropriate for statistical investigations of cluster environments, the space density of groups, biases in the optical and X-ray selection of groups and clusters, and AGN phenomena in relation to galaxy host properties and their evolution.

R.A. Dec. Target Name Det. Grating Exp.Time
14:26:59.40+32:41:23.00SS57ACIS-INONE5
14:28:12.00+32:41:32.00SS58ACIS-INONE5
14:25:41.80+32:41:09.00SS56ACIS-INONE5
14:29:29.70+32:41:40.00SS59ACIS-INONE5
14:30:42.20+32:41:44.00SS60ACIS-INONE5

Subject Category: EXTRAGALACTIC DIFFUSE EMISSION AND SURVEYS

Proposal Number: 05900218

Title: The Extended Chandra Deep Field-South Survey: A Public Chandra Legacy

Type: VLP Total Time: 1980

PI Name: William Brandt

We propose to extend the 1 Ms Chandra Deep Field-South (CDF-S) survey with six public 330 ks flanking observations: the Extended CDF-S (E-CDF-S). Using these, we will study the detailed cosmic history of accretion onto supermassive black holes, the role of moderate-luminosity AGN at high redshift, AGN clustering, and X-ray groups and low-luminosity clusters. The proposed observations are optimized to fill the X-ray luminosity/redshift plane at z > 1.5 where the AGN source statistics are still limited. Follow-up studies will exploit the superb E-CDF-S multiwavelength coverage including VLT/Keck spectroscopy (6000+ VLT redshifts), HST imaging (GEMS, GOODS, ACS Ultradeep Field; 734 HST orbits), intensive ground-based imaging, and scheduled SIRTF observations.

R.A. Dec. Target Name Det. Grating Exp.Time
03:33:03.64-27:41:20.68Extended CDF-S #1ACIS-INONE250
03:31:50.54-27:41:18.28Extended CDF-S #2ACIS-INONE250
03:31:50.31-27:57:31.89Extended CDF-S #3ACIS-INONE250
03:33:03.69-27:57:33.23Extended CDF-S #4ACIS-INONE250

Subject Category: EXTRAGALACTIC DIFFUSE EMISSION AND SURVEYS

Proposal Number: 05900547

Title: The Balance of Power between Starbursts and AGN: a Chandra/SIRTF Survey.

Type: LP Total Time: 630

PI Name: Belinda Wilkes

We propose a moderate-depth (70 ksec), 0.6 sq.deg. Chandra survey, the deepest/largest CONTIGUOUS area to date, in the Lockman Field of the SIRTF/SWIRE Legacy Survey coincident with a completed, ultra-deep VLA survey with deep optical and near-IR imaging in-hand. SWIRE, the largest SIRTF program, will detect >500 000 dusty galaxies to z > 2.5 in 7 fields covering 65 sq.degs. The prime science goal is to study the structure, evolution and environments of AGN, starbursts and ellipsoids over the SAME SPATIAL VOLUME out to z > 2.5. Key to this study is an X-ray survey deep enough to distinguish starbursts and AGN, including the significant, highly obscured (log Nh>22) subset. Chandra will secure X-ray identification and fluxes for ~550 (0.6 sq deg) of the field's ~7000 SWIRE sources.

R.A. Dec. Target Name Det. Grating Exp.Time
10:46:00.00+59:00:60.00SWIRE LOCKMAN 5 (center)ACIS-INONE70
10:43:60.00+58:45:60.00SWIRE LOCKMAN 1ACIS-INONE70
10:46:00.00+58:45:60.00SWIRE LOCKMAN 2ACIS-INONE70
10:48:00.00+58:45:60.00SWIRE LOCKMAN 3ACIS-INONE70
10:43:60.00+59:00:60.00SWIRE LOCKMAN 4ACIS-INONE70
10:48:00.00+59:00:60.00SWIRE LOCKMAN 6ACIS-INONE70
10:43:60.00+59:15:60.00SWIRE LOCKMAN 7ACIS-INONE70
10:46:00.00+59:15:60.00SWIRE LOCKMAN 8ACIS-INONE70
10:48:00.00+59:15:60.00SWIRE LOCKMAN 9ACIS-INONE70

Subject Category: EXTRAGALACTIC DIFFUSE EMISSION AND SURVEYS

Proposal Number: 06900144

Title: Continuing X-Raying the Intergalactic Medium with Blazars in Outburst: Deeper in Redshift and Wider in Area.

Type: TOO/LP Total Time: 340

PI Name: Fabrizio Nicastro

We propose to extend our highly succesful Chandra-AO4 and -AO5 TOO programs to the 6th Chandra cycle, to observe up to 2 blazars in exceptionally high states with the Chandra HRCS-LETG (hereinafter HLETG) for a total exposure time of {\bf 340 ks} (2 orbits). We shall dramatically reduce the uncertainty on the cosmological baryon mass density $\Omega_b$ in the local Universe studying the ``warm'', low-redshift, phase of the intergalactic medium (WHIM), where most of the baryonic matter of the $z \ls 1$ Universe is believed to hide.

R.A. Dec. Target Name Det. Grating Exp.Time
high-z blazar in outburstHRC-SLETG170
moderate-z blazar in outburstHRC-SLETG170

Subject Category: EXTRAGALACTIC DIFFUSE EMISSION AND SURVEYS

Proposal Number: 06900444

Title: Deep Chandra Imaging of the Extended Groth Strip: The Co-evolution of Black Holes and Galaxies

Type: VLP Total Time: 1400

PI Name: Kirpal Nandra

The Extended Groth Strip (EGS) is a half square degree region that has been targeted intensively for galaxy evolution studies. A remarkable array of ultra-deep data have been or will be accumulated, to include radio, near/mid/far IR, optical and UV data of depth comparable to or better than any part of the sky. It is also the subject of the massive DEEP2 redshift survey, giving high quality Keck spectra for 16-17,000 galaxies. The clear gap in the coverage of the EGS is in the X-ray, and we therefore propose to augment the single deep Chandra pointing with 7 more, to image the whole strip. Our goal is to study the co-evolution of galaxies and black holes, by examining in detail the astrophysics of AGN activity, and its relationship to the host galaxy and surrounding large scale structure.

R.A. Dec. Target Name Det. Grating Exp.Time
14:22:54.80+53:25:32.50EGS-1ACIS-INONE200
14:21:45.20+53:13:22.70EGS-2ACIS-INONE200
14:20:40.50+53:01:56.30EGS-3ACIS-INONE200
14:19:36.40+52:50:27.70EGS-4ACIS-INONE200
14:18:32.90+52:38:56.90EGS-5ACIS-INONE200
14:16:49.50+52:19:57.60EGS-6ACIS-INONE200
14:15:47.50+52:08:21.40EGS-7ACIS-INONE200

Subject Category: EXTRAGALACTIC DIFFUSE EMISSION AND SURVEYS

Proposal Number: 07900865

Title: Searching for WHIM in Large-Scale Structures

Type: TOO/LP Total Time: 300

PI Name: Luca Zappacosta

Simulations and observations indicate that galaxy overdensities are good tracers of the dark matter large-scale structures and therefore of the diffuse warm-hot phase (WHIM) that should be associated with them. The WHIM in these large-scale structures should have large column densities, and therefore should be much easier to detect than the low column density WHIM which has been targeted so far. However, this efficient method of investigating WHIM has yet to be exploited. We have identified 5 bright blazars just in the background of known large-scale structures. We propose to probe and study the WHIM in these structures by identifying the associated absorption lines in the spectrum of these AGNs during their outburst phases, through TOO observations for a total of 300ks with HRC-S/LETG.

R.A. Dec. Target Name Det. Grating Exp.Time
16:53:52.20+39:45:36.60Mkn 501HRC-SLETG99
22:02:43.30+42:16:40.00BL LacHRC-SLETG1
02:32:48.60+20:17:17.001ES 0229+200HRC-SLETG98
01:23:08.90+34:20:50.001ES 0120+340HRC-SLETG1
23:23:52.50+42:10:55.001ES 2321+419HRC-SLETG1

Subject Category: EXTRAGALACTIC DIFFUSE EMISSION AND SURVEYS

Proposal Number: 08900073

Title: THE CHANDRA-COSMOS SURVEY

Type: VLP Total Time: 1800

PI Name: Martin Elvis

We propose the Chandra-COSMOS survey which will provide an unprecedented combination of contiguous area, depth and resolution. 36 densely tiled observations will cover the central 0.7 sq.deg. COSMOS field to a uniform 200ksec depth. COSMOS explores the coupled evolution of galaxies, dark matter halos and AGNs (massive black holes) largely free of cosmic variance. COSMOS is a comprehensive survey including: HST, Spitzer, Subaru, VLT, Magellan, VLA, MAMBO, GALEX, & potentially EVLA & ALMA. Chandra resolution & sensitivity enables the study of large scale phenomena: (1) influence of the surrounding environment; (2) interaction between galaxies; (3) influence of groups and clusters: (4) BH growth and census; (5) star formation and stellar populations; (6) feedback from starbursts and AGNs.

R.A. Dec. Target Name Det. Grating Exp.Time
10:01:48.80+02:37:23.90C-COSMOS1-1ACIS-INONE50
10:01:16.80+02:37:23.90C-COSMOS1-2ACIS-INONE50
10:00:44.80+02:37:23.90C-COSMOS1-3ACIS-INONE50
09:59:40.80+02:37:23.90C-COSMOS1-5ACIS-INONE50
09:59:08.80+02:37:23.90C-COSMOS1-6ACIS-INONE50
10:01:48.80+02:29:24.00C-COSMOS2-1ACIS-INONE50
10:01:16.80+02:29:24.00C-COSMOS2-2ACIS-INONE50
10:00:12.80+02:29:24.00C-COSMOS2-4ACIS-INONE50
09:59:40.80+02:29:24.00C-COSMOS2-5ACIS-INONE50
09:59:08.80+02:29:24.00C-COSMOS2-6ACIS-INONE50
10:01:48.80+02:21:24.10C-COSMOS3-1ACIS-INONE50
10:00:44.80+02:21:24.10C-COSMOS3-3ACIS-INONE50
10:00:12.80+02:21:24.10C-COSMOS3-4ACIS-INONE50
09:59:40.80+02:21:24.10C-COSMOS3-5ACIS-INONE50
09:59:08.80+02:21:24.10C-COSMOS3-6ACIS-INONE50
10:01:48.80+02:13:23.90C-COSMOS4-1ACIS-INONE50
10:01:16.80+02:13:23.90C-COSMOS4-2ACIS-INONE50
10:00:44.80+02:13:23.90C-COSMOS4-3ACIS-INONE50
10:00:12.80+02:13:23.90C-COSMOS4-4ACIS-INONE50
09:59:40.80+02:13:23.90C-COSMOS4-5ACIS-INONE50
09:59:08.80+02:13:23.90C-COSMOS4-6ACIS-INONE50
10:01:48.80+02:05:24.00C-COSMOS5-1ACIS-INONE50
10:01:16.80+02:05:24.00C-COSMOS5-2ACIS-INONE50
10:00:44.80+02:05:24.00C-COSMOS5-3ACIS-INONE50
10:00:12.80+02:05:24.00C-COSMOS5-4ACIS-INONE50
09:59:40.80+02:05:24.00C-COSMOS5-5ACIS-INONE50
09:59:08.80+02:05:24.00C-COSMOS5-6ACIS-INONE50
10:01:48.80+01:57:24.10C-COSMOS6-1ACIS-INONE50
10:01:16.80+01:57:24.10C-COSMOS6-2ACIS-INONE50
10:00:44.80+01:57:24.10C-COSMOS6-3ACIS-INONE50
10:00:12.80+01:57:24.10C-COSMOS6-4ACIS-INONE50
09:59:40.80+01:57:24.10C-COSMOS6-5ACIS-INONE50
09:59:08.80+01:57:24.10C-COSMOS6-6ACIS-INONE50
10:00:12.80+02:37:23.90C-COSMOS1-4ACIS-INONE50
10:00:44.80+02:29:24.00C-COSMOS2-3ACIS-INONE50
10:01:16.80+02:21:24.10C-COSMOS3-2ACIS-INONE50

Subject Category: EXTRAGALACTIC DIFFUSE EMISSION AND SURVEYS

Proposal Number: 08900745

Title: The Chandra Deep Proto-cluster Field: Black-Hole Growth and Feedback in Dense Environments

Type: LP Total Time: 400

PI Name: David Alexander

Deep X-ray surveys have revolutionized our understanding of the growth of black holes (SMBH). But these surveys only sample low-density regions at high-z due to their limited solid angle. There is no comparably sensitive X-ray census of AGN in high-density regions at high-z. Such environments evolve into the most massive clusters at z=0, regions which exhibit remarkable trends in galaxy properties - which may reflect early interactions between SMBHs and their host galaxies. A survey of a proto-cluster at high-z would provide a unique view of the interplay of the growth of galaxies and their SMBHs. Here we propose a 400ks survey of the best-studied proto-cluster at high-z, to enable the first definitive study of the growth of SMBHs and their host galaxies in a dense, young, environment.

R.A. Dec. Target Name Det. Grating Exp.Time
22:17:35.90+00:15:58.90SSA22 ProtoclusterACIS-INONE400

Subject Category: EXTRAGALACTIC DIFFUSE EMISSION AND SURVEYS

Proposal Number: 08900784

Title: The Duty Cycle of Supermassive Black Holes: X-raying Virgo

Type: LP Total Time: 453.6

PI Name: Tommaso Treu

Nuclear accretion on to super-massive black holes (SMBHs) plays a key role in the evolution of their host galaxies, as inferred from the ubiquity of SMBHs and the correlations between BH mass, and host mass and velocity dispersion. A fundamental unadressed issue is the actual distribution of accretion rates; we propose snapshot observations of an unbiased sample of 84 early-type galaxies in the Virgo cluster. Together with joint Spitzer 24 um observations, and publicly available HST-ACS and UV data, this survey will probe low-level nuclear activity over four orders of magnitude in black hole mass, thereby delivering the first unbiased census of the duty cycle of local SMBHs.

R.A. Dec. Target Name Det. Grating Exp.Time
12:28:03.90+09:48:14.001062ACIS-SNONE5.4
12:52:17.50+11:18:50.002092ACIS-SNONE5.4
12:19:45.40+12:47:54.30369ACIS-SNONE5.4
12:24:55.50+11:42:15.00759ACIS-SNONE5.4
12:36:53.40+07:14:47.001692ACIS-SNONE5.4
12:27:40.50+13:04:44.201030ACIS-SNONE5.4
12:44:31.90+11:11:25.102000ACIS-SNONE5.4
12:36:24.80+10:23:04.601661ACIS-SNONE5.4
12:23:35.30+16:43:22.30654ACIS-SNONE5.4
12:42:47.40+11:26:33.001938ACIS-SNONE5.4
12:30:17.40+12:19:43.901279ACIS-SNONE5.4
12:37:30.60+09:33:18.801720ACIS-SNONE5.4
12:19:30.60+14:52:41.40355ACIS-SNONE5.4
12:35:30.60+12:13:15.401619ACIS-SNONE5.4
12:41:32.70+07:18:53.001883ACIS-SNONE5.4
12:29:53.50+14:04:07.001242ACIS-SNONE5.4
12:25:14.70+15:36:27.20784ACIS-SNONE5.4
12:34:06.10+11:19:17.001537ACIS-SNONE5.4
12:25:12.30+14:45:43.80778ACIS-SNONE5.4
12:25:41.70+12:48:38.00828ACIS-SNONE5.4
12:29:59.10+12:20:55.001250ACIS-SNONE5.4
12:35:38.00+12:15:50.501630ACIS-SNONE5.4
12:28:57.60+13:14:30.801146ACIS-SNONE5.4
12:27:36.70+08:09:14.801025ACIS-SNONE5.4
12:30:40.60+09:00:55.901303ACIS-SNONE5.4
12:42:10.70+07:40:37.001913ACIS-SNONE5.4
12:30:57.60+12:16:17.201327ACIS-SNONE5.4
12:28:43.40+11:45:21.001125ACIS-SNONE5.4
12:33:05.00+16:15:55.901475ACIS-SNONE5.4
12:30:18.40+13:34:40.901283ACIS-SNONE5.4
12:30:10.40+10:46:46.101261ACIS-SNONE5.4
12:24:05.00+11:13:06.00698ACIS-SNONE5.4
12:32:14.20+10:15:05.001422ACIS-SNONE5.4
12:47:15.30+10:12:13.002048ACIS-SNONE5.4
12:41:15.70+11:23:13.501871ACIS-SNONE5.4
12:09:22.30+13:59:33.109ACIS-SNONE5.4
12:22:43.30+08:11:53.70575ACIS-SNONE5.4
12:42:08.70+11:45:14.901910ACIS-SNONE5.4
12:27:54.90+08:05:25.201049ACIS-SNONE5.4
12:15:12.60+14:25:59.10140ACIS-SNONE5.4
12:31:20.00+14:06:53.501355ACIS-SNONE5.4
12:28:14.90+11:47:24.001087ACIS-SNONE5.4
12:40:58.50+11:11:04.401861ACIS-SNONE5.4
12:22:19.50+14:45:38.60543ACIS-SNONE5.4
12:32:23.40+11:15:46.201431ACIS-SNONE5.4
12:33:51.60+13:19:21.301528ACIS-SNONE5.4
12:36:54.90+12:31:12.501695ACIS-SNONE5.4
12:40:19.60+15:56:07.201833ACIS-SNONE5.4
12:20:48.80+17:29:13.40437ACIS-SNONE5.4
12:11:07.80+14:16:29.8033ACIS-SNONE5.4
12:16:33.70+13:01:53.10200ACIS-SNONE5.4
12:22:41.10+07:57:01.10571ACIS-SNONE5.4
12:10:23.20+10:11:17.6021ACIS-SNONE5.4
12:33:13.40+09:23:49.801488ACIS-SNONE5.4
12:39:04.70+14:43:51.501779ACIS-SNONE5.4
12:41:52.00+09:24:10.301895ACIS-SNONE5.4
12:33:19.80+12:51:12.801499ACIS-SNONE5.4
12:34:11.50+12:02:55.901545ACIS-SNONE5.4
12:29:30.20+07:59:34.001192ACIS-SNONE5.4
12:28:12.30+10:17:51.001075ACIS-SNONE5.4
12:42:58.00+10:40:54.501948ACIS-SNONE5.4
12:35:37.30+12:22:54.901627ACIS-SNONE5.4
12:32:33.40+15:24:55.201440ACIS-SNONE5.4
12:17:19.60+11:56:36.20230ACIS-SNONE5.4
12:47:20.70+12:09:58.702050ACIS-SNONE5.4
12:44:12.00+12:56:30.101993ACIS-SNONE5.4
12:24:48.30+18:11:42.00751ACIS-SNONE5.4
12:40:13.40+12:52:29.001828ACIS-SNONE5.4
12:22:14.80+07:10:00.80538ACIS-SNONE5.4
12:41:39.40+12:14:52.401886ACIS-SNONE5.4
12:29:35.00+08:03:31.401199ACIS-SNONE5.4
12:38:06.80+10:04:56.601743ACIS-SNONE5.4
12:34:06.80+12:44:30.101539ACIS-SNONE5.4
12:29:23.40+12:27:02.401185ACIS-SNONE5.4
12:40:11.20+09:53:45.901826ACIS-SNONE5.4
12:33:34.60+11:15:42.801512ACIS-SNONE5.4
12:33:13.80+10:55:43.601489ACIS-SNONE5.4
12:26:50.50+09:35:02.00944ACIS-SNONE5.4
12:30:52.20+16:45:32.601321ACIS-SNONE5.4
12:29:21.30+08:09:23.001178ACIS-SNONE5.4
12:25:57.80+10:03:12.80856ACIS-SNONE5.4
12:45:20.40+13:41:33.002019ACIS-SNONE5.4
12:40:53.10+10:28:34.001857ACIS-SNONE5.4
12:32:02.70+11:53:24.801407ACIS-SNONE5.4

Subject Category: EXTRAGALACTIC DIFFUSE EMISSION AND SURVEYS

Proposal Number: 09900660

Title: The Evolution of Faint AGN at High Redshift

Type: VLP Total Time: 1800

PI Name: Kirpal Nandra

We propose a very deep (total 800ks/field) Chandra survey of 0.25 deg2 covering 3 contiguous fields in the Extended Groth Strip, which have exceptional multiwaveband coverage obtained by the AEGIS project. These data, in combination with the CDF North and South, will provide a definitive measurement of the evolution of faint, X-ray selected AGN from z=3-4, where the optical number counts start to drop dramatically. In combination with ultradeep Spitzer data in the same region, this survey will also provide a crucial step forward towards a more complete census of AGN activity and the importance of Compton thick AGN at high z, with associated implications for the total accretion budget of the universe.

R.A. Dec. Target Name Det. Grating Exp.Time
14:20:15.50+53:00:09.70AEGIS-1ACIS-INONE600
14:19:12.00+52:48:38.20AEGIS-2ACIS-INONE600
14:18:09.00+52:37:04.40AEGIS-3ACIS-INONE600

Subject Category: EXTRAGALACTIC DIFFUSE EMISSION AND SURVEYS

Proposal Number: 10900836

Title: A Benchmark Observation of the Warm-Hot Intergalactic Medium

Type: LP Total Time: 500

PI Name: Taotao Fang

Searching for the ``Missing baryons'', in the form of the warm-hot intergalactic medium (WHIM), is a fundamental challenge faced by the current theory of structure formation. Cosmological simulations predict that majority of the WHIM can be probed in X-ray only, yet the reported detections are often in question due to statistical and systematical issues. Based on the tentative evidence in our joint XMM-Chandra ToO observations of H 2356-309, we propose a deep, non-ToO Chandra observation to definitively detect the WHIM absorption line with a measured column density expected from theory. A null detection would place an upper limit which cannot be explained by current cosmological simulations, and put future pursuit of the WHIM with current generation of X-ray telescopes in question.

R.A. Dec. Target Name Det. Grating Exp.Time
23:59:07.90-30:37:41.00H 2356-309HRC-SLETG500

Subject Category: EXTRAGALACTIC DIFFUSE EMISSION AND SURVEYS

Proposal Number: 11900514

Title: COMBH: Chandra Observations of M-sigma Black Holes

Type: LP Total Time: 510

PI Name: Kayhan Gultekin

Galaxies with dynamically-measured central BH masses allow us to understand BH accretion, jets, and interactions between BHs and host galaxies with a clarity not possible in random surveys. By measuring true Eddington fractions, we can calculate the energy in radiation vs mechanical jet energy and the efficacy of BHs in heating nuclear regions and affecting star formation. Remarkably, 1/3 of SMBHs making up the M-sigma relation have been poorly observed or totally unobserved with Chandra. We propose a survey of 15 M-sigma galaxies to complete the sample of reliable M-sigma SMBHs. For each galaxy we propose to obtain 30-60 ks exposures and an hour-long VLA observation. This survey will test and extend the fundamental plane of BH activity and facilitate studies of the origin of M-sigma.

R.A. Dec. Target Name Det. Grating Exp.Time
03:19:41.10-19:24:40.90NGC1300ACIS-SNONE30
09:13:43.00+76:28:31.20NGC 2748ACIS-SNONE30
09:12:24.40+35:01:39.10NGC2778ACIS-SNONE30
12:20:17.80+75:22:15.20NGC4291ACIS-SNONE30
12:51:48.00-10:27:17.00NGC4742ACIS-SNONE30
13:19:31.70-12:39:25.10NGC5077ACIS-SNONE30
14:21:03.70+03:16:15.60NGC5576ACIS-SNONE30
10:48:16.90+12:37:45.40NGC3384ACIS-SNONE30
12:30:57.70+12:16:13.30NGC4486AACIS-SNONE30
12:28:60.00+13:58:42.80NGC4459ACIS-SNONE30
12:39:55.90+10:10:33.90NGC4596ACIS-SNONE30
23:00:59.90+30:08:41.60NGC7457ACIS-SNONE30

Subject Category: EXTRAGALACTIC DIFFUSE EMISSION AND SURVEYS

Proposal Number: 12900343

Title: Securing a Detection of the Bulk of the Missing Baryons

Type: LP Total Time: 500

PI Name: Fabrizio Nicastro

We propose to optimize the use of X-ray and FUV observatories to settle unambiguously one of the most controversial and open problems of modern astrophysics: the existence of the Missing Baryons in a Warm-Hot Intergalactic Medium (WHIM). We will do this by targeting a 500 ks Chandra-LETG observation on the best available tracers of the bulk (~80%) of the Missing Baryons in the Universe: two intergalactic absorption systems recently detected through Broad HI Lya and triple-OVI absorption, respectively, in a moderate S/N HST-COS spectrum of the bright and relatively high-redshift (z>0.4) blazar 1ES 1553+113. The proposed observation is carefully designed to finally secure a detection of the WHIM and to obtain a first robust estimate of its metal content.

R.A. Dec. Target Name Det. Grating Exp.Time
15:55:43.00+11:11:24.001ES 1553+113HRC-SLETG500

Subject Category: EXTRAGALACTIC DIFFUSE EMISSION AND SURVEYS

Proposal Number: 12900635

Title: A CHandra survey of Extended Emission-line Regions in nearby Seyfert galaxies (CHEERS)

Type: LP Total Time: 335

PI Name: Junfeng Wang

We propose the `ultimate' resolution Chandra imaging survey (CHEERS) of a far-IR selected sample of active galactic nuclei (AGN) from Schmitt et al. (2003). With complementary high resolution HST and radio data, CHEERS will (1) resolve the detailed X-ray morphology of the extended narrow line region and obtain full picture of the multiphase interstellar medium (ISM) with typical resolution of 0.4 arcsec; (2) investigate the X-ray emission mechanisms at AGN jet-ISM interaction regions and (3) measure mass and momentum outflow rates to evaluate the importance of AGN feedback. To achieve these goals, we request 335 ks ACIS-S observations and 5 HST orbits to supplement the archival data.

R.A. Dec. Target Name Det. Grating Exp.Time
03:36:46.20-35:59:57.30NGC 1386ACIS-SNONE80
10:48:23.50-25:09:43.40NGC 3393ACIS-SNONE70
12:25:46.80+12:39:43.80NGC 4388ACIS-SNONE30
12:35:36.60-39:54:33.40NGC 4507ACIS-SNONE45
06:15:36.40+71:02:15.10Mrk 3ACIS-SNONE30
01:43:57.80+02:21:00.00Mrk 573ACIS-SNONE80

Subject Category: EXTRAGALACTIC DIFFUSE EMISSION AND SURVEYS

Proposal Number: 14900904

Title: The COSMOS Legacy Survey

Type: XVP Total Time: 2800

PI Name: Francesca Civano

We propose the COSMOS-Legacy Survey covering the entire 1.7deg2 COSMOS/HST area to a uniform depth of ~160ks, expanding the current deep C-COSMOS area by a factor 3, with 56x50 ks pointings for a total of 2.8 Ms. This area and depth proposed are designed to detect~40 z>4, and ~4 z>5 Large Scale Structures on >15' scales, connecting luminous Chandra quasars (among over 200 z>3 quasars) and sub-mm galaxies, a method already proven in C-COSMOS. The area/depth combination also probes mini-quasars at z>7 using anistotropies of the unresolved XRB and the masses of the DM halos hosting X-ray AGN up to z~3 via autocorrelation functions on ~30' scales. Large programs with SCUBA2, NuSTAR, Subaru and Keck over the COSMOS field will identify and get redshifts for all COSMOS-Legacy sources.

R.A. Dec. Target Name Det. Grating Exp.Time
10:00:29.90+02:12:40.00COSMOS LegacyACIS-INONE2800
Smithsonian Institute Smithsonian Institute

The Chandra X-Ray Center (CXC) is operated for NASA by the Smithsonian Astrophysical Observatory. 60 Garden Street, Cambridge, MA 02138 USA.   Email:   cxchelp@head.cfa.harvard.edu Smithsonian Institution, Copyright © 1998-2024. All rights reserved.