Accepted Cycle 16 Observing Proposals

ACTIVE GALAXIES AND QUASARS

Proposal Number	Subject Category	PI Name	Type	Time (ks)	Title
16700010	ACTIVE GALAXIES AND QUASARS	Brandt	GO	36	Shielding Gas Variations in Transforming Broad Absorption Line Quasars
16700095	ACTIVE GALAXIES AND QUASARS	Fabbiano	GO	245	The Complex Fe-K Emission of Compton-Thick AGNs
16700103	ACTIVE GALAXIES AND QUASARS	Reines	GO	92	Probing the Growth of Massive Black Holes in Dwarf Galaxies with Chandra and HST
16700128	ACTIVE GALAXIES AND QUASARS	Brandt	GO	46	The Nature of Quasars with Redshifted Broad Absorption Lines
16700135	ACTIVE GALAXIES AND QUASARS	Greene	GO	80	Extended X-ray Emission From a Quasar-driven Superbubble
16700161	ACTIVE GALAXIES AND QUASARS	Pooley	GO	70	Chandra observation of SDSS J2222+2745
16700185	ACTIVE GALAXIES AND QUASARS	Harris	TOO	35	Triggering Chandra to Detect an X-ray Counterpart to TeV Flaring from M87 During Cycle 16
16700223	ACTIVE GALAXIES AND QUASARS	Harris	GO	10	Keeping Tabs on the Unique Jet in M87 During Cycle 16
16700228	ACTIVE GALAXIES AND QUASARS	Worrall	GO	65	Investigating shocked gas at crucial jet power
16700232	ACTIVE GALAXIES AND QUASARS	Gultekin	GO	116	ULTRAMASSIVE BLACK HOLES: FUNDAMENTAL PLANE AND CORONAE
16700278	ACTIVE GALAXIES AND QUASARS	Chartas	GO	167	AGNs Formed in Protogalaxies Associated with Sub-DLAs
16700335	ACTIVE GALAXIES AND QUASARS	Fabbiano	GO	70	MERGER-TRIGGERED NUCLEAR ACTIVITY AT SUB-KILOPARSEC SCALES
16700345	ACTIVE GALAXIES AND QUASARS	Piconcelli	GO	214	The Central Engine of the Most Luminous Quasars
16700361	ACTIVE GALAXIES AND QUASARS	Massardi	GO	80	X-ray observations of the nuclear activity in strongly lensed star forming galaxies at redshift >1.5
16700373	ACTIVE GALAXIES AND QUASARS	Maksym	GO	90	Quasar and AGN Variability on 10-100 kyr Timescales
16700376	ACTIVE GALAXIES AND QUASARS	Fan	GO	14	Explanatory X-ray observation of a hyper-luminous quasar at the end of reionization era
16700427	ACTIVE GALAXIES AND QUASARS	Meyer	GO	225	Solving the X-ray Origin Problem in Large-scale Jets with Chandra and Fermi Observations
16700447	ACTIVE GALAXIES AND QUASARS	Leighly	GO	72	Probing the Physics of Quasar Outflows using Mini-LoBALs
16700470	ACTIVE GALAXIES AND QUASARS	King	LP	700	Uncovering the True Nature of Warm-Absorbing Winds: The Power of the Fe XXII Doublet
16700473	ACTIVE GALAXIES AND QUASARS	Ojha	GO	10	The very unusual gamma-ray source PMN J1603-4904 and its neighbors
16700512	ACTIVE GALAXIES AND QUASARS	Goulding	GO	42	3C190: Probing the extreme AGN blowout phase of galaxy evolution
16700515	ACTIVE GALAXIES AND QUASARS	Lee	LP	450	An X-ray, UV, and radio probe of the PG 1211+143 inflow-outflow dynamics
16700548	ACTIVE GALAXIES AND QUASARS	Ponti	TOO	280	X-ray monitoring of Sgr A* during outburst
16700636	ACTIVE GALAXIES AND QUASARS	Cheung	GO	90	Intermittent Outbursts in CGCG 292-057: Jet Duty Cycle and Jet-ISM Interactions
16700656	ACTIVE GALAXIES AND QUASARS	Mushotzky	GO	120	UNCOVERING AGN FUELING AND FEEDBACK IN DWARF GALAXIES
16700678	ACTIVE GALAXIES AND QUASARS	Zauderer	GO	120	X-Ray Production in the Unique Relativistic Tidal Disruption Event Sw1644+57
16700687	ACTIVE GALAXIES AND QUASARS	LaMassa	GO	50	The Curious Case of NGC 4968
16700713	ACTIVE GALAXIES AND QUASARS	Gallerani	GO	80	A novel method to constrain black hole and gas masses in z>6 quasars using the synergy of X-ray/millimeter observations
16700719	ACTIVE GALAXIES AND QUASARS	Mingo	GO	130	Strong shocks in 3C 15
16700780	ACTIVE GALAXIES AND QUASARS	Lin	GO	40	Chandra Observation of an Ultrasoft Active Galactic Nucleus with a 3.8 hr Periodicity
16700793	ACTIVE GALAXIES AND QUASARS	Sun	GO	182	Strong FR II galaxy 3C 220.1 in a cluster cool core
16700846	ACTIVE GALAXIES AND QUASARS	Vieira	GO	50	Is the Most Concentrated Infrared Luminosity Density in the Universe dominated by an AGN or a Hyper-Starburst?
16700859	ACTIVE GALAXIES AND QUASARS	Wise	XVP	2000	The Rise to Power: Half a Billion Years of Intense AGN Activity in the Merging Cluster Cygnus A
16700878	ACTIVE GALAXIES AND QUASARS	Markowitz	GO	100	Diffuse Extended Emission in Centaurus A: The best case with which to study AGN/Host Galaxy Interaction
16700901	ACTIVE GALAXIES AND QUASARS	Saez	GO	40	CONSTRAINING THE WIND-SHIELD SCENARIO OF PG 2112+059
16700907	ACTIVE GALAXIES AND QUASARS	Irwin	GO	210	Constraining the X-ray AGN Fraction Within Filaments of Galaxies

Subject Category: ACTIVE GALAXIES AND QUASARS

Proposal Number: 16700010

Title: Shielding Gas Variations in Transforming Broad Absorption Line Quasars

Type: GO Total Time (ks): 36

PI Name: W.N. Brandt

Abstract: X-ray/EUV absorbing shielding gas is thought to be essential for the driving of Broad Absorption Line (BAL) quasar winds, but the nature of this key component requires further investigation. Using a large sample of multi-year BAL variability observations from SDSS-I/II/III, we have discovered a set of quasars that have fully transformed from being BAL quasars to non-BAL quasars; all BAL troughs have disappeared. A promising model for these transformations invokes variations of the shielding gas that increase the level of ionizing X-ray/EUV radiation reaching the BAL wind. We propose timely Chandra observations of 9 transforming BAL quasars to determine if their shielding gas has moved entirely out of our line-of-sight, leaving behind an X-ray unabsorbed non-BAL quasar.

R.A.	Dec.	Target Name	Det.	Grating	Exp. Time (ks)
+07:46:50.60	+18:20:28.70	SDSS J0746+1820	ACIS-S	None	2.5
+09:36:20.50	+00:46:49.20	SDSS J0936+0046	ACIS-S	None	3.0
+08:59:04.60	+04:26:47.80	SDSS J0859+0426	ACIS-S	None	3.9
+15:22:44.00	+03:27:19.80	SDSS J1522+0327	ACIS-S	None	3.7
+00:40:22.40	+00:59:39.60	SDSS J0040+0059	ACIS-S	None	6.8
+15:21:49.80	+01:02:36.40	SDSS J1521+0102	ACIS-S	None	3.7
+14:21:32.00	+37:52:30.30	SDSS J1421+3752	ACIS-S	None	3.5
+13:32:11.20	+39:28:25.90	SDSS J1332+3928	ACIS-S	None	4.9
+11:45:46.20	+03:22:51.90	SDSS J1145+0322	ACIS-S	None	4.9

Subject Category: ACTIVE GALAXIES AND QUASARS

Proposal Number: 16700095

Title: The Complex Fe-K Emission of Compton-Thick AGNs

Type: GO Total Time (ks): 245

PI Name: Giuseppina Fabbiano

Abstract: CT AGNs have the characteristics predicted for the buried pre-blow-out phase in the CDM merger cycle of galaxy and SMBH evolution. We propose to exploit Chandra s unique imaging resolution in the 6-7keV band, for a spatial/spectral study with ACIS of the dense nuclear surroundings of two optimally selected CT AGNs, for which archival Chandra ACIS data suggest complex Fe-K regions. We will (1) obtain a direct spatial/spectral picture of the interaction of the SMBH with the surrounding clouds, (2) investigate the obscuring torus, and (3) explore the existence of close (~100pc) dual AGNs, suggested by merging simulation. The softer energy band will be sensitive to ionization cones, measuring the power of feedback in the near universe in an optimally selected sample.

R.A.	Dec.	Target Name	Det.	Grating	Exp. Time (ks)
+07:16:31.20	-29:19:29.00	IRAS07145-2914	ACIS-S	None	130.0
+14:32:40.70	-44:10:28.00	NGC5643	ACIS-S	None	115.0

Subject Category: ACTIVE GALAXIES AND QUASARS

Proposal Number: 16700103

Title: Probing the Growth of Massive Black Holes in Dwarf Galaxies with Chandra and HST

Type: GO Total Time (ks): 92

PI Name: Amy Reines

Abstract: The study of massive black holes (BHs) in dwarf galaxies can place valuable constraints on the birth and growth of the first supermassive BH seeds. We propose Chandra and HST observations of 8 dwarf galaxies from our recent sample of optically-selected AGN in galaxies with stellar masses comparable to the Magellanic Clouds (Reines et al. 2013). Our target galaxies host broad-line AGN and contain the least-massive BHs known in galaxy nuclei. The proposed observations will enable us to characterize the compact X-ray and UV emission from the AGN, estimate Eddington ratios for the smallest BHs known, and investigate host galaxy properties and BH scaling relations at the sparsely populated low-mass end.

R.A.	Dec.	Target Name	Det.	Grating	Exp. Time (ks)
+02:46:56.40	-00:33:04.90	J024656.39-003304.8	ACIS-S	None	16.0
+09:06:13.80	+56:10:15.50	J090613.75+561015.5	ACIS-S	None	16.0
+09:54:18.20	+47:17:25.10	J095418.15+471725.1	ACIS-S	None	8.0
+14:40:12.70	+02:47:43.50	J144012.70+024743.5	ACIS-S	None	7.0
+08:51:25.80	+39:35:41.70	J085125.81+393541.7	ACIS-S	None	13.0
+15:26:37.40	+06:59:41.70	J152637.36+065941.6	ACIS-S	None	11.0
+16:05:31.80	+17:48:26.20	J160531.84+174826.1	ACIS-S	None	8.0
+08:40:29.90	+47:07:10.40	J084029.91+470710.4	ACIS-S	None	13.0

Subject Category: ACTIVE GALAXIES AND QUASARS

Proposal Number: 16700128

Title: The Nature of Quasars with Redshifted Broad Absorption Lines

Type: GO Total Time (ks): 46

PI Name: W.N. Brandt

Abstract: We have recently identified the first compelling examples of quasars with redshifted Broad Absorption Lines (BALs) in the massive spectroscopic databases from the SDSS-I/II/III. These quasars can provide novel insights into the structure of quasar inflows/outflows; we may be observing gas infall to small radii, rotationally dominated outflows, or binary quasars where a wind is seen in silhouette. Here we propose exploratory Chandra observations that will test these models by assessing if heavy X-ray absorption from shielding gas, thought to be essential for the driving of typical BAL winds, lies along our line of sight. These observations will be a central part of our multiwavelength program aiming to determine robustly the nature of quasars with redshifted BALs.

R.A.	Dec.	Target Name	Det.	Grating	Exp. Time (ks)
+17:24:04.40	+31:35:39.60	SDSS J1724+3135	ACIS-S	None	9.9
+21:57:04.30	-00:22:17.70	SDSS J2157-0022	ACIS-S	None	13.2
+11:25:26.10	+00:29:01.30	SDSS J1125+0029	ACIS-S	None	3.7
+08:30:30.30	+16:54:44.70	SDSS J0830+1654	ACIS-S	None	6.0
+16:28:05.80	+47:44:15.60	SDSS J1628+4744	ACIS-S	None	4.8
+10:34:12.30	+07:20:03.60	SDSS J1034+0720	ACIS-S	None	4.0
+11:28:28.30	+01:13:37.90	SDSS J1128+0113	ACIS-S	None	5.4

Subject Category: ACTIVE GALAXIES AND QUASARS

Proposal Number: 16700135

Title: Extended X-ray Emission From a Quasar-driven Superbubble

Type: GO Total Time (ks): 80

PI Name: Jenny Greene

Abstract: We propose to look for the X-ray component of a bona-fide quasar-driven wind, manifested as a 20 kpc-scale superbubble in the warm ionized gas. With ALMA and JVLA observations, we have ruled out star formation or a radio jet as the source of the outflow, and we have detected very soft (<1 keV) X-ray photons spatially coincident with the superbubble. With our existing 20 ks observation, we cannot determine whether the X-rays arise from the hot outflow or photoionized gas. With an additional 80ks observation (100 ks total), we will use the X-ray morphology and spectrum to distinguish these two possibilities. A single-orbit HST observation will allow us to both build a pure emission line map of the outflow and (via scattered light) teach us about the ambient density in the outflow.

R.A.	Dec.	Target Name	Det.	Grating	Exp. Time (ks)
+13:56:46.10	+10:26:09.00	SDSS J135646.10+102609.0	ACIS-S	None	80.0

Subject Category: ACTIVE GALAXIES AND QUASARS

Proposal Number: 16700161

Title: Chandra observation of SDSS J2222+2745

Type: GO Total Time (ks): 70

PI Name: David Pooley

Abstract: We propose to observe the recently discovered SDSS J2222+2745, a system in which a cluster of galaxies strongly lenses a background quasar and produces six images, two of which are very difficult to extract in the optical. This object is of singular cosmological importance as it may be the only such quasar/cluster lens in the universe producing more than five images. Our proposed Chandra observation will confirm the existence of these images and determine whether any microlensing-induced flux ratio anomalies exist. The current mass model of the system predicts flux ratios that are discrepant with the optical observations, and the crucial question is whether this is due to an imperfect mass model or to microlensing. Our proposed Chandra observation will answer this.

R.A.	Dec.	Target Name	Det.	Grating	Exp. Time (ks)
+22:22:08.60	+27:45:33.20	SDSS J2222+2745	ACIS-S	None	70.0

Subject Category: ACTIVE GALAXIES AND QUASARS

Proposal Number: 16700185

Title: Triggering Chandra to Detect an X-ray Counterpart to TeV Flaring from M87 During Cycle 16

Type: TOO Total Time (ks): 35

PI Name: Daniel Harris

Abstract: From VERITAS, HESS, and MAGIC observations, it appears that there are TeV flaring states for M87 which last a few days to a week or more and provide many detections at a level significantly higher than the quiet state. Because we model the TeV emission as IC scattering by the same electrons responsible for X-ray synchrotron emission, we expect that TeV variability will be mirrored in the X-rays. To determine the location of TeV flaring, to further constrain X-ray time scales, and to obtain simultaneous photometry to refine sync/IC calculations, we request a Chandra ToO program to be triggered by TeV flaring. We request 35ks, divided into 7 daily 5ks observations so as to construct a light curve for comparison with those obtained by the Cherenkov observatories.

R.A.	Dec.	Target Name	Det.	Grating	Exp. Time (ks)
+12:30:49.00	+12:23:30.00	M87	ACIS-S	None	35.0

Subject Category: ACTIVE GALAXIES AND QUASARS

Proposal Number: 16700223

Title: Keeping Tabs on the Unique Jet in M87 During Cycle 16

Type: GO Total Time (ks): 10

PI Name: Daniel Harris

Abstract: We request 2 observations of the M87 jet at 5 ks each. The first should be in Dec 2014 and the second in 2015 Mar. There are three reasons for this modest proposal: (1) If our M87 ToO is triggered, we need to know the intensity of each component in the jet before the onset of TeV flaring. (2) To ascertain if the nucleus, knot HST-1, or knot D (known to be variable in the optical) have increased substantially since our most recent observation (2013 Dec): if we were to find a substantial change, a DDT request would be instigated. (3) To extend the time baseline for evaluation of long term intensity decay of knots which is expected for synchrotron losses of the very high energy electrons responsible for the X-ray emission.

R.A.	Dec.	Target Name	Det.	Grating	Exp. Time (ks)
+12:30:49.00	+12:23:30.00	M87	ACIS-S	None	10.0

Subject Category: ACTIVE GALAXIES AND QUASARS

Proposal Number: 16700228

Title: Investigating shocked gas at crucial jet power

Type: GO Total Time (ks): 65

PI Name: Diana Worrall

Abstract: Radio galaxies at the FR I/II boundary dominate the heating effects of radio sources, but the active physical mechanisms in the typical group-scale medium are relatively unknown. Here we propose a 65-ks ACIS-S exposure of PKS B1416-493, one of the brightest FR I/II sources unobserved with Chandra. It has similar characteristics to other FR I/II sources where strong shocks have been found. PKS B1416-493 is associated with a prominent RASS source, and has similar radio morphology to FR I/II shock-bounded sources. Should shocks be found in PKS B1416-493 as well, then existing values for radio-source heating by this important source population based on cavity power alone are underestimates.

R.A.	Dec.	Target Name	Det.	Grating	Exp. Time (ks)
+14:20:03.70	-49:35:42.30	PKS B1416-493	ACIS-I	None	65.0

Subject Category: ACTIVE GALAXIES AND QUASARS

Proposal Number: 16700232

Title: ULTRAMASSIVE BLACK HOLES: FUNDAMENTAL PLANE AND CORONAE

Type: GO Total Time (ks): 116

PI Name: Kayhan Gultekin

Abstract: We will measure the X-ray flux and radio continuum of 7 ultramassive BHs (M>3e9) to test competing models of the fundamental plane (FP) of BH accretion. The FP relates the X-ray, radio, and mass of an accreting BH, and demonstrates there is a connection between BH inflow and outflow. The FP is derived mostly from BHs with masses under 2e9. It is not clear if the FP holds for the largest BHs. The 2 ways to create the FP, with only SMBHs OR jointly with SMBHs and stellar BHs, differ by 100 for the largest BHs. Only with Chandra we can separate corona and AGN to determine it. Coronae around huge BHs are critical in limiting feeding so that we can understand the gas supply around and accretion onto the largest BHs.

R.A.	Dec.	Target Name	Det.	Grating	Exp. Time (ks)
+02:42:29.00	+18:09:52.80	MCG+03-07-047	ACIS-S	None	31.0
+02:29:14.00	+23:04:57.60	IC 1802	ACIS-S	None	17.0
+08:28:47.10	-06:56:24.60	Mrk 1216	ACIS-S	None	13.0
+13:24:52.90	-04:04:55.00	NGC 5133	ACIS-S	None	12.0
+10:56:16.00	+42:19:59.10	PGC 032873	ACIS-S	None	25.0
+02:24:44.40	+42:37:22.50	UGC 1859	ACIS-S	None	10.0
+03:22:02.90	+40:51:50.00	UGC 2698	ACIS-S	None	8.0

Subject Category: ACTIVE GALAXIES AND QUASARS

Proposal Number: 16700278

Title: AGNs Formed in Protogalaxies Associated with Sub-DLAs

Type: GO Total Time (ks): 167

PI Name: George Chartas

Abstract: We propose to obtain deep observations of 4 quasars known to contain sub-damped Lyman-alpha absorbers in their optical/UV spectra. Our goal is to verify the presence of candidate AGN suggested in these sub-DLAs from short exposure archival Chandra data. The proposed observations may provide the first detection of AGN in protogalaxies/young galaxies with known cold-gas abundances and kinematics and from the X-ray luminosities of these AGN provide rough estimates of their black hole masses.

R.A.	Dec.	Target Name	Det.	Grating	Exp. Time (ks)
+13:23:23.70	-00:21:55.00	PSS 1323-0021	ACIS-S	None	11.0
+09:55:11.30	+59:40:31.00	PSS 0955+5940	ACIS-S	None	44.0
+09:57:44.40	+33:08:20.70	SDSS J095744.46+330820.7	ACIS-S	None	47.0
+01:33:40.30	+04:00:59.00	PSS 0133+0400	ACIS-S	None	65.0

Subject Category: ACTIVE GALAXIES AND QUASARS

Proposal Number: 16700335

Title: MERGER-TRIGGERED NUCLEAR ACTIVITY AT SUB-KILOPARSEC SCALES

Type: GO Total Time (ks): 70

PI Name: Giuseppina Fabbiano

Abstract: Galaxy mergers are key in galaxy evolution as they can trigger active galactic nucleus (AGN) activity. A pair of supermassive black holes (BHs), potentially AGN, is expected to form in the last stage of a merger. Therefore, the identification and characterization of binary AGN in an evolved merger stage (i.e. at sub-kpc scales) and comparison with other merger stages is crucial for understanding the BH-galaxy coevolution and the role of mergers in AGN fueling. Yet very few sub-kpc binary AGN have been identified. We request a 70ks Chandra observation to probe the AGN nature of seven sub-kpc binary AGN candidates located in galaxies that span a range of merger stages and mass ratios. This will allow investigating the connection between mergers and AGN-triggered activity and BH growth.

R.A.	Dec.	Target Name	Det.	Grating	Exp. Time (ks)
+09:17:05.30	+25:25:45.10	Mrk1230	ACIS-S	None	10.0
+11:38:13.00	+12:06:42.90	NGC3773	ACIS-S	None	10.0
+11:12:39.80	+09:03:20.60	Mrk 731	ACIS-S	None	10.0
+09:49:30.40	+55:34:47.80	Mrk 22	ACIS-S	None	10.0
+09:16:45.50	+53:26:34.10	Mrk 104	ACIS-S	None	10.0
+10:48:56.90	+12:11:41.80	Mrk 1263	ACIS-S	None	10.0
+12:24:40.10	+03:18:12.20	MCG+01-32-049	ACIS-S	None	10.0

Subject Category: ACTIVE GALAXIES AND QUASARS

Proposal Number: 16700345

Title: The Central Engine of the Most Luminous Quasars

Type: GO Total Time (ks): 214

PI Name: Enrico Piconcelli

Abstract: We propose here to perform ACIS-S spectroscopy of a sample of seven WISE selected Type 1 QSOs at 2 < z < 4 for a total exposure time of 280 ks. Our targets stand out for being the most luminous (LBol > 1e47 erg/s) QSOs at the epoch when both cosmic star formation density and QSO activity reach their peaks. Previous Chandra snapshots indicate that these QSOs are apparently X-ray weak. Our goal is to assess if the X-ray weakness is due to an obscuring screen along our line of sight to the nucleus or to a quenched coronal emission.

R.A.	Dec.	Target Name	Det.	Grating	Exp. Time (ks)
+07:35:02.30	+26:59:11.50	SDSS J073502.30+265911.5	ACIS-S	None	25.0
+02:09:50.70	-00:05:06.40	SDSS J020950.70-000506.4	ACIS-S	None	30.0
+15:13:52.50	+08:55:55.80	SDSS J151352.52+085555.7	ACIS-S	None	30.0
+21:23:29.50	-00:50:52.90	SDSS J212329.46-005052.9	ACIS-S	None	40.0
+08:01:17.80	+52:10:34.60	SDSS J080117.79+521034.5	ACIS-S	None	44.0
+11:11:19.10	+13:36:03.90	SDSS J111119.10+133603.8	ACIS-S	None	45.0

Subject Category: ACTIVE GALAXIES AND QUASARS

Proposal Number: 16700361

Title: X-ray observations of the nuclear activity in strongly lensed star forming galaxies at redshift >1.5

Type: GO Total Time (ks): 80

PI Name: Marcella Massardi

Abstract: We propose ACIS-S observations of 5 strongly lensed galaxies having z>1.5 and hints of a mid-IR excess over standard SEDs of star-forming galaxies suggestive of the presence of an AGN. By taking advantage of the lensing magnification, we aim to look for weak nuclear activity associated to high-z galaxies with large SFRs, hence to extend the investigation of the relationship between star formation and nuclear activity to intrinsically less luminous, more representative of the general population, high-z star forming galaxies than was possible so far. These pilot observations will allow us to image the lensed systems to a resolution of 0.5 arcsec, reaching fluxes~(0.2-65)x10^-14 erg/cm^2/s (depending on source properties) in ~40ks per source, estimated enough to detect their AGN components.

R.A.	Dec.	Target Name	Det.	Grating	Exp. Time (ks)
+09:10:43.10	-00:03:22.90	HATLASJ091043.0-000322	ACIS-S	None	20.0
+09:07:40.00	-00:41:59.80	HATLASJ090740.0-004200	ACIS-S	None	60.0

Subject Category: ACTIVE GALAXIES AND QUASARS

Proposal Number: 16700373

Title: Quasar and AGN Variability on 10-100 kyr Timescales

Type: GO Total Time (ks): 90

PI Name: Walter Maksym

Abstract: The extended emission line region (EELR) "Hanny's Voorwerp" Has provide a critical example of AGN shutdown on short timescale. But more X-ray observations of similar objects are necessary to explore the role of feedback and mode switching in this phenomenon. We proprose observations of two select EELR galaxies which have similar properties in order to explore the effects these faded AGNs have had on their host galaxies.

R.A.	Dec.	Target Name	Det.	Grating	Exp. Time (ks)
+16:28:04.00	+51:46:31.50	Mkn 1498	ACIS-S	None	20.0
+18:16:11.70	+42:39:37.30	UGC 11185	ACIS-S	None	70.0

Subject Category: ACTIVE GALAXIES AND QUASARS

Proposal Number: 16700376

Title: Explanatory X-ray observation of a hyper-luminous quasar at the end of reionization era

Type: GO Total Time (ks): 14

PI Name: Xiaohui Fan

Abstract: We have discovered an extremely luminous high redshift (z=6.3) quasar selected by SDSS and WISE color. It is 10 times brighter than an average SDSS $z \approx 6$ quasars with bolometric luminosity of $4.26\times10^{14}L_{\odot}$. Deep optical and near-IR spectroscopy shows that this object has very weak rest-frame UV emission lines, including $Ly\alpha+NV$, CIV and MgII. It is thus the most luminous and highest redshift example of a family of Weak Emission Line Quasar. We propose exploratory {\it Chandra} observation for this hyper-luminous quasar and obtain basic X-ray properties of this quasar. The proposed observation will help to probe the black hole growth and possible explanations for the weakness of emission lines.

R.A.	Dec.	Target Name	Det.	Grating	Exp. Time (ks)
+01:00:13.20	+28:02:25.80	SDSS J010013.02+280225.8	ACIS-S	None	14.9

Subject Category: ACTIVE GALAXIES AND QUASARS

Proposal Number: 16700427

Title: Solving the X-ray Origin Problem in Large-scale Jets with Chandra and Fermi Observations

Type: GO Total Time (ks): 225

PI Name: Eileen Meyer

Abstract: We propose deep ACIS-S observations of five kpc-scale powerful quasar jets, previously detected in short exposures 10-13 years ago, to accurately measure the X-ray flux level and spectral index for individual knots in the resolved jet. We are motivated by our recent results that in two powerful sources, 3C 273 and PKS 1136-135, the X-rays are synchrotron, rather than the widely believed IC emission off the CMB. These two models imply radically different jets and deep Chandra imaging is necessary to distinguish between them with the help of existing Fermi data. The proposed targets have been selected to cover almost 2 orders of magnitude in jet power, which allows us to evaluate the X-ray emission mechanism over a wide range of jet powers.

R.A.	Dec.	Target Name	Det.	Grating	Exp. Time (ks)
+00:20:25.20	+15:40:55.00	3c 9	ACIS-S	None	85.0
+02:37:52.40	+28:48:09.00	0234+285	ACIS-S	None	40.0
+16:42:07.80	+68:56:40.00	1642-690	ACIS-S	None	65.0
+19:27:48.50	+73:58:02.00	1928+738	ACIS-S	None	35.0

Subject Category: ACTIVE GALAXIES AND QUASARS

Proposal Number: 16700447

Title: Probing the Physics of Quasar Outflows using Mini-LoBALs

Type: GO Total Time (ks): 72

PI Name: Karen Leighly

Abstract: Broad absorption-line quasars are X-ray weak but have hard spectra, suggesting they are quasars viewed through an equatorial wind and associated X-ray shielding gas. The X-ray weakest objects, LoBALs, are viewed through the thickest part of the outflow, while the relatively X-ray bright miniBALs are less absorbed, with a view just skimming the outflow. We propose short (5-11ks) observations of a well-defined sample of 10 mini-LoBALs: objects with narrow MgII absorption lines. If they are X-ray weak like LoBALs, differential column density is the key physical parameter; if X-ray bright like miniBALs, viewing angle is critical. In combination with in-hand optical and infrared spectra, 73ks of Chandra time will provide important information on BALQSO astrophysics at many wavelengths.

R.A.	Dec.	Target Name	Det.	Grating	Exp. Time (ks)
+08:09:34.60	+25:48:38.00	SDSS J080934.64+254837.9	ACIS-S	None	7.9
+08:53:57.90	+46:33:51.00	SDSS J085357.87+463350.6	ACIS-S	None	8.5
+09:03:13.90	+31:20:15.00	FBQS J090313.9+312015	ACIS-S	None	7.0
+09:19:38.60	+36:02:47.00	SDSS J091938.63+360247.0	ACIS-S	None	7.5
+10:13:26.90	+35:58:07.00	TON 1189	ACIS-S	None	4.6
+10:28:39.10	+45:00:09.00	SDSS J102839.11+450009.4	ACIS-S	None	4.5
+12:19:11.10	+04:29:06.00	SDSS J121911.16+042905.8	ACIS-S	None	8.7
+12:43:00.90	+15:35:11.00	LBQS 1240+1551	ACIS-S	None	10.6
+13:09:52.90	+01:19:51.00	SDSS J130952.88+011950.7	ACIS-S	None	5.9
+14:04:47.80	+05:37:08.00	SDSS J140447.81+053708.2	ACIS-S	None	6.9

Subject Category: ACTIVE GALAXIES AND QUASARS

Proposal Number: 16700470

Title: Uncovering the True Nature of Warm-Absorbing Winds: The Power of the Fe XXII Doublet

Type: LP Total Time (ks): 700

PI Name: Ashley King

Abstract: We propose to observe the Seyfert 1 galaxy, NGC 4051 to securely detect the Fe XXII absorption lines. This doublet will accurately determine the density, mass-outflow rate and the liberated kinetic power for the first time in an X-ray detected, warm-absorbing wind. Currently, wind estimates in AGN fall just short of providing enough material and energy to their bulges to affect its evolution and structure. However, with more accurate density measurements this discrepancy is likely to be resolved. In addition, this study is the last chance to lead the way spectroscopically before Astro-H comes on-line. We request 700 ks with the Chandra HETG to observe the warm-absorbing winds in NGC 4051.

R.A.	Dec.	Target Name	Det.	Grating	Exp. Time (ks)
+12:03:09.60	+44:31:53.00	NGC 4051	ACIS-S	HETG	700.0

Subject Category: ACTIVE GALAXIES AND QUASARS

Proposal Number: 16700473

Title: The very unusual gamma-ray source PMN J1603-4904 and its neighbors

Type: GO Total Time (ks): 10

PI Name: Roopesh Ojha

Abstract: The bright $\gamma$-ray source PMN\,J1603--4904 exhibits very unusual multiwavelength properties, suggesting that this source might be the first young radio galaxy detected at GeV energies. A confirmation of this important result urgently needs excluding possible source confusion which could in principle account for the unusual broadband spectrum. We propose joint \chandra/ACIS-I (10\,ksec) and HST-WFC3UVIS (2000\,s) observations in order to validate this multiwavelength association, which is not trivial in this crowded field close to the Galactic plane. Deep imaging in the optical and X-rays is crucial for understanding the physical nature of this exceptional object and can only be addressed by these instruments requiring high angular resolution and low background.

R.A.	Dec.	Target Name	Det.	Grating	Exp. Time (ks)
+16:03:50.70	-49:04:05.10	PMN J1603-4904	ACIS-I	None	10.0

Subject Category: ACTIVE GALAXIES AND QUASARS

Proposal Number: 16700512

Title: 3C190: Probing the extreme AGN blowout phase of galaxy evolution

Type: GO Total Time (ks): 42

PI Name: Andy Goulding

Abstract: We propose joint 42ks Chandra ACIS-S & 4hrs(2+2) JVLA radio observations of 3C190, a z~1.2 merger-remnant harboring an extremely luminous compact steep spectrum radio QSO. A previous 3ks ACIS-S snapshot showed a powerful unobscured X-ray nucleus and possible extended hot gas. However, the multi-wavelength properties show 3C190 uniquely presents strong Si-absorption, and hence, a heavily obscured QSO. Our proposed observations will accurately constrain the intrinsic X-ray properties of the central QSO, including the obscuring column density and accretion rate, as well as discover the extent and properties of the extended hot gas. In turn, we will directly test if 3C190 is undergoing a short-lived, but pivotal, transition from an obscured to unobscured QSO.

R.A.	Dec.	Target Name	Det.	Grating	Exp. Time (ks)
+08:01:33.50	+14:14:42.90	3C190	ACIS-S	None	42.0

Subject Category: ACTIVE GALAXIES AND QUASARS

Proposal Number: 16700515

Title: An X-ray, UV, and radio probe of the PG 1211+143 inflow-outflow dynamics

Type: LP Total Time (ks): 450

PI Name: Julia Lee

Abstract: We propose for a Chandra HETGS (450ks), HST COS (4 orbits), and JVLA (5 hrs JVLA-A) study of the QSO PG 1211+143. With Chandra, we will measure the kinematics of the ionized wind to establish energetics. Contemporaneous Chandra-HST observations will be necessary for determing thermodynamic stability conditions and wind-driving mechanisms. JVLA observations will enhance the outflow studies by identifying the radio emission (possibly from a jet) associated with PG1211, to tie in with HETGS studies of its ionized wind(s). Strong gravity signatures in PG 1211 using traditional methods and new probes will also be assessed. Existing Chandra LETGS, XMM RGS, Suzaku spectra lack the spectral resolution and S/N to enable a clear picture of the PG1211 inflow-outflow dynamics.

R.A.	Dec.	Target Name	Det.	Grating	Exp. Time (ks)
+12:14:17.60	+14:03:12.50	PG 1211+143	ACIS-S	HETG	450.0

Subject Category: ACTIVE GALAXIES AND QUASARS

Proposal Number: 16700548

Title: X-ray monitoring of Sgr A* during outburst

Type: TOO Total Time (ks): 280

PI Name: Gabriele Ponti

Abstract: This is a resubmission of last year's (updated according to the latest results) un-triggered ToO program. "In the event that the Galactic Centre super-massive black hole (BH), SgrA*, goes into outburst (L>=10^36 erg s^-1) during Cycle-16, we propose to trigger a 100ks HETG observation, followed by a monitoring campaign of several 40ks HETG observations. During such an outburst SgrA* will become the brightest AGN in the 2-10 keV sky. Our proposed observations will offer powerful new insights into the BH accretion process."

R.A.	Dec.	Target Name	Det.	Grating	Exp. Time (ks)
+17:45:40.00	-29:00:28.10	Sgr A*	ACIS-S	HETG	280.0

Subject Category: ACTIVE GALAXIES AND QUASARS

Proposal Number: 16700636

Title: Intermittent Outbursts in CGCG 292-057: Jet Duty Cycle and Jet-ISM Interactions

Type: GO Total Time (ks): 90

PI Name: C.C. Cheung

Abstract: The galaxy CGCG292-057 displays a disturbed post-merger optical morphology. We have discovered that it hosts a radio source with complex structure characterized by a pair of compact (20 kpc) inner lobes embedded within larger-scale (270 kpc) outer lobes with winged/X-shaped morphology. These characteristics are believed to be distinct signatures of intermittent jet activity from the central engine. We request a 90 ks Chandra exposure in order to understand the complex duty cycle in the system by investigating the spectral and spatial properties of the hot ISM interacting with the compact inner lobes. The proposed observations are expected to provide novel constraints on the feedback processes related to the co-evolution of jetted supermassive black holes with their galactic hosts.

R.A.	Dec.	Target Name	Det.	Grating	Exp. Time (ks)
+11:59:05.70	+58:20:36.10	CGCG 292-057	ACIS-S	None	90.0

Subject Category: ACTIVE GALAXIES AND QUASARS

Proposal Number: 16700656

Title: UNCOVERING AGN FUELING AND FEEDBACK IN DWARF GALAXIES

Type: GO Total Time (ks): 120

PI Name: Richard Mushotzky

Abstract: While massive black holes (BHs) are ubiquitous in massive galaxies, their presence in dwarf galaxies is less certain. This constitutes a major gap in our understanding of BH-galaxy co-evolution. Identifying low-mass BHs in local dwarfs could also constrain BH seed formation at high z. Active BHs in dwarfs can reveal BH fueling and feedback in a vastly different regime than the well-studied AGN in massive hosts. Most AGN feedback models focus on the latter, as star formation is thought to suffice to drive feedback in dwarfs. However, AGN are increasingly found in dwarfs, where their effect on hosts may be most dramatic. We propose an unprecedented program to detect and characterize AGN fueling and feedback in the low-mass regime, using a unique sample of Swift-BAT AGN in dwarf

R.A.	Dec.	Target Name	Det.	Grating	Exp. Time (ks)
+12:06:22.90	+52:42:39.90	NGC4102	ACIS-S	None	30.0
+12:09:29.70	+43:41:07.10	NGC4138	ACIS-S	None	30.0
+05:05:45.70	-23:51:14.00	2MASXJ05054575-2351139	ACIS-S	None	10.0
+04:14:52.00	-07:55:39.00	IRAS04124-0803	ACIS-S	None	10.0
+14:40:38.00	+53:30:15.00	Mrk477	ACIS-S	None	10.0
+12:38:54.00	-27:18:28.00	ESO506-G027	ACIS-S	None	10.0
+15:48:25.00	-13:45:28.00	NGC 5995	ACIS-S	None	10.0
+03:53:42.00	+37:14:07.00	2MASX J03534246+3714077	ACIS-S	None	10.0

Subject Category: ACTIVE GALAXIES AND QUASARS

Proposal Number: 16700678

Title: X-Ray Production in the Unique Relativistic Tidal Disruption Event Sw1644+57

Type: GO Total Time (ks): 120

PI Name: Bevin Zauderer

Abstract: AGN produce relativistic jets with >Myr lifetimes that preclude observations when the jets turn on or off. Thus, transient accretion onto a supermassive black hole through the tidal disruption of a star can offer unique insight into the process of relativistic jet birth and death. In 2011 Swift discovered the first such event, providing unprecedented insight into jet activity from a previously dormant SMBH. Following our demonstration that a relativistic jet was launched at the time of gamma-ray discovery, the goal of this Chandra proposal is to test our recent suggestion that the relativistic jet turned off about 500 days later. The proposed observation (supported by extensive radio data) will confirm that the jet turned off and determine the nature of the residual X-ray emission.

R.A.	Dec.	Target Name	Det.	Grating	Exp. Time (ks)
+16:44:49.90	+57:34:59.70	Sw1644+57	ACIS-S	None	120.0

Subject Category: ACTIVE GALAXIES AND QUASARS

Proposal Number: 16700687

Title: The Curious Case of NGC 4968

Type: GO Total Time (ks): 50

PI Name: Stephanie LaMassa

Abstract: NGC 4968 is a local obscured AGN that has an extreme Fe K-alpha equivalent width (EW = 3.1$^{+0.99}_{-0.78}$ keV) as measured by XMM-Newton. This EW is indicative of Compton-thick obscuration and potentially a strong circumnuclear starburst, though the quality of the XMM data precludes a proper analysis of these processes. We request a 50 ks Chandra observation to isolate the nuclear region from the host galaxy, search for spectroscopic signatures of a circumnuclear starburst, and model the AGN spectrum with physically motivated, self-consistent models, such as MYTorus, to investigate the properties of the likely Compton-thick X-ray reprocessor.

R.A.	Dec.	Target Name	Det.	Grating	Exp. Time (ks)
+13:07:06.00	-23:40:37.00	NGC 4968	ACIS-S	None	50.0

Subject Category: ACTIVE GALAXIES AND QUASARS

Proposal Number: 16700713

Title: A novel method to constrain black hole and gas masses in z>6 quasars using the synergy of X-ray/millimeter observations

Type: GO Total Time (ks): 80

PI Name: Simona Gallerani

Abstract: We propose to detect in X-ray SDSS J1148+5251 (z=6.4), one of the most extreme and best studied high-z QSOs. In this object, we have recently discovered through millimeter observations the CO(17-16) emission line, namely the most excited CO rotational line ever detected at these z. The proposed 80 ks ACIS observation will be used to test a model of the ISM specifically designed for this object and obtain tight constraints on the SMBH and molecular hydrogen mass. Our model predicts that high-J CO lines are powerful tracers of X-ray activity, especially in QSOs enshrouded in a thick cocoon of gas and dust. The proposed experiment will test the new idea of using high-J CO lines for detecting (even z>6) obscured QSO, expected to be undergoing a key early phase of the QSO/galaxy co-evolution.

R.A.	Dec.	Target Name	Det.	Grating	Exp. Time (ks)
+11:48:16.60	+52:51:50.20	SDSS J114816.64+525150.3	ACIS-S	None	80.0

Subject Category: ACTIVE GALAXIES AND QUASARS

Proposal Number: 16700719

Title: Strong shocks in 3C 15

Type: GO Total Time (ks): 130

PI Name: Beatriz Mingo

Abstract: We propose a 130 ks observation of 3C 15, a powerful radio galaxy which, atypically, shows evidence for strongly shocked shells of gas spanning 50 kpc. The implications of a strong shock in 3C 15 challenge standard assumptions about the nature and dynamics of lobes in powerful radio galaxies. Characterising the extended emission in this source will help us determine the role of power scaling, environment, particle content and feedback in jet-driven shocks across the entire radio-loud AGN population.

R.A.	Dec.	Target Name	Det.	Grating	Exp. Time (ks)
+00:37:04.10	-01:09:08.00	3C 15	ACIS-S	None	130.0

Subject Category: ACTIVE GALAXIES AND QUASARS

Proposal Number: 16700780

Title: Chandra Observation of an Ultrasoft Active Galactic Nucleus with a 3.8 hr Periodicity

Type: GO Total Time (ks): 40

PI Name: Dacheng Lin

Abstract: Abstract: The source 2XMM J123103.2+110648 was recently discovered to show many intriguing properties, including being a strong candidate for a high Eddington-ratio true type 2 active galaxy lacking the broad line region, important for the standard Unified Model for active galactic nuclei, and showing a strong quasi-periodic X-ray oscillation, important for understanding the black hole scale invariance nature. To understand the origin of the very high luminosity emission we propose a deep Chandra follow-up observation, ten years after the previous XMM-Newton pointings, to determine its long-term evolution.

R.A.	Dec.	Target Name	Det.	Grating	Exp. Time (ks)
+12:31:03.20	+11:06:48.00	2XMM J123103.2+110648	ACIS-S	None	40.0

Subject Category: ACTIVE GALAXIES AND QUASARS

Proposal Number: 16700793

Title: Strong FR II galaxy 3C 220.1 in a cluster cool core

Type: GO Total Time (ks): 182

PI Name: Ming Sun

Abstract: AGN outbursts have significant impact on structure formation and evolution. Their imprint on the ICM (e.g., cavities and shocks) provides an historical chronicle of the SMBH activity. Because of the general correlation between radio luminosity and AGN jet power, FR II galaxies are ideal targets to study the biggest AGN outbursts. However, FR II galaxies have been little studied so far in the X-ray cavity samples, as few FR II galaxies are located in large X-ray cool cores. We have done a comprehensive search for ideal strong FR II galaxies in large X-ray cool cores. In this proposal, 182 ks observations are requested for a rare example of a strong FR II in the cool core of a rich cluster (3C 220.1), undergoing strong mechanical and radiative feedback.

R.A.	Dec.	Target Name	Det.	Grating	Exp. Time (ks)
+09:32:40.00	+79:06:30.00	3C 220.1	ACIS-S	None	182.0

Subject Category: ACTIVE GALAXIES AND QUASARS

Proposal Number: 16700846

Title: Is the Most Concentrated Infrared Luminosity Density in the Universe dominated by an AGN or a Hyper-Starburst?

Type: GO Total Time (ks): 50

PI Name: Joaquin Vieira

Abstract: The most remarkable object discovered thus far in the South Pole Telescope survey of 2500deg^2 is SPT0346-52. This strongly lensed system at z=5.7 has the highest IR luminosity density of any object known, but the source of its power is unclear. Is SPT0346 undergoing a massive, maximum starburst phase, or is its incredible luminosity driven by accretion onto a central black hole? We propose deep 50ks observations of SPT0346 which will provide the answer. This depth, and the very high energy photons probed, ensure that even a moderately powerful AGN will be detectable. Stronger AGN activity will allow us to constrain the spectral slope and N_H, and construct lens models based on the X-ray emission. A non-detection would be most surprising, implying very high (80%) star formation efficiency.

R.A.	Dec.	Target Name	Det.	Grating	Exp. Time (ks)
+03:46:41.10	-52:05:02.20	SPT-S J034640-5205.1	ACIS-S	None	50.2

Subject Category: ACTIVE GALAXIES AND QUASARS

Proposal Number: 16700859

Title: The Rise to Power: Half a Billion Years of Intense AGN Activity in the Merging Cluster Cygnus A

Type: XVP Total Time (ks): 2000

PI Name: Michael Wise

Abstract: As the closest powerful radio galaxy, Cygnus A is the definitive laboratory for studying the radio galaxy physics in dense environments. Cygnus A resides in a cluster currently undergoing a nearly equal mass, major merger. Our proposed Chandra observation will quantify the energy exchange between the radio plasma emitted by the SMBH and the surrounding atmosphere. The Chandra image will also map the jet termination hotspots at high resolution and produce the most accurate measurements of jet energetics in any powerful radio galaxy. Our deep map of the cluster-scale emission will provide a complete record of the AGN power output over the past half billion years and allow us to explore the connection between this activity and the merger itself.

R.A.	Dec.	Target Name	Det.	Grating	Exp. Time (ks)
+19:59:28.30	+40:44:02.00	Cygnus A - Nucleus	ACIS-I	None	600.0
+19:59:22.80	+40:44:25.30	Cygnus A - W Hotspot	ACIS-I	None	600.0
+19:59:32.00	+40:43:40.40	Cygnus A - E Hotspot	ACIS-I	None	600.0
+19:59:12.60	+40:48:02.40	Cygnus A - Filament	ACIS-I	None	100.0
+19:58:47.60	+40:53:35.20	Cygnus A - NW Subcluster	ACIS-I	None	100.0

Subject Category: ACTIVE GALAXIES AND QUASARS

Proposal Number: 16700878

Title: Diffuse Extended Emission in Centaurus A: The best case with which to study AGN/Host Galaxy Interaction

Type: GO Total Time (ks): 100

PI Name: Alex Markowitz

Abstract: We request a 100 ks observation of Centaurus A, the nearest radio-loud AGN, using the LETGS gratings. Given its proximity, Centaurus A offers the highest spatial resolution (~100 pc scales), at which to investigate the role of AGN feedback into interstellar gas on sub-kpc scales in a radio-loud AGN. Chandra can isolate the extended diffuse emission from the absorbed nuclear component and the jet. We will determine the ionization mechanism (photo- versus collisional-), search for radiative recombination continua features, and obtain temperature and density diagnostics from He-like triplets.

R.A.	Dec.	Target Name	Det.	Grating	Exp. Time (ks)
+13:25:27.60	-43:01:09.00	Centaurus A	ACIS-S	LETG	100.0

Subject Category: ACTIVE GALAXIES AND QUASARS

Proposal Number: 16700901

Title: CONSTRAINING THE WIND-SHIELD SCENARIO OF PG 2112+059

Type: GO Total Time (ks): 40

PI Name: Cristian Saez

Abstract: The physical scenario describing the origin of quasar winds, still remains largely unsettled due to our failure to account for X-ray weak BALQSOs. In this proposal, we plan to study the relation between the inner part of the wind which is likely to be shielding the X-ray emission and the UV winds characterized by broad absorption lines (BALs). To address this, we propose to probe the shield-wind connection in the highly X-ray variable BALQSO PG 2112+059, which has exhibited periods of X-ray weakness and X-Ray "normality" in the past.

R.A.	Dec.	Target Name	Det.	Grating	Exp. Time (ks)
+21:14:52.60	+06:07:42.50	PG 2112+059	ACIS-S	None	40.0

Subject Category: ACTIVE GALAXIES AND QUASARS

Proposal Number: 16700907

Title: Constraining the X-ray AGN Fraction Within Filaments of Galaxies

Type: GO Total Time (ks): 210

PI Name: Jimmy Irwin

Abstract: The fraction of galaxies hosting L_X > 10^41 ergs/s AGN is larger for groups than for the field or rich clusters by about a factor of two. While some studies suggest X-ray activity is indicative of galaxies that have recently fallen into clusters/groups, this claim has been difficult to test. Ideally, one would like to observe galaxies actively feeding forming groups via filaments. One example of a merging group being fed by identified filaments is the super-group Abell 1882 at z=0.14 which has at least four filaments feeding four galaxy sub-groups that are in the process of merging. We propose three pointings of Abell 1882's filament system to detect AGN to a limiting luminosity of 10^41 ergs/s to obtain the first determination of the X-ray AGN fraction in cluster-feeding filaments.

R.A.	Dec.	Target Name	Det.	Grating	Exp. Time (ks)
+14:14:38.40	-00:01:12.00	Abell1882 - Filament #1	ACIS-I	None	70.0
+14:13:57.80	-00:17:07.60	Abell1882 - Filament #2	ACIS-I	None	70.0
+14:12:50.20	-00:17:07.90	Abell1882 - Filament #3	ACIS-I	None	70.0

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.