The Chandra Deep Protocluster Survey: Point-Source Catalogs for a 400 ks Observation of the z = 3.09 Protocluster in SSA22

Abstract

We present X-ray point-source catalogs for a deep 400 ks Chandra ACIS-I exposure of the SSA22 field. The observations are centred on a z = 3.09 protocluster, which is populated by Lyman break galaxies (LBGs), Lyalpha emitters (LAEs), and extended Lyalpha-emitting blobs (LABs). The survey reaches ultimate (3 count) sensitivity limits of 5.7 X 10^-17 and 3.0 X 10^-16 ergs cm^-2 s^-1 for the 0.5-2 keV and 2-8 keV bands, respectively. These limits make SSA22 the fourth deepest extragalactic Chandra survey yet conducted, and the only one focused on a known high redshift structure. In total, we detect 297 X-ray point sources and identify one obvious bright extended X-ray source over a ~330 arcmin^2 region. In addition to our X-ray catalogs, we provide all available optical spectroscopic redshifts and near-infrared and mid-infrared photometry available for our sources. The basic X-ray and infrared properties of our Chandra sources indicate a variety of source types, although absorbed active galactic nuclei (AGNs) appear to dominate. In total, we have identified 12 X-ray sources (either via optical spectroscopic redshifts or LAE selection) at z =3.06-3.12 that are likely to be associated with the SSA22 protocluster. These sources have X-ray and multiwavelength properties that suggest they are powered by AGN with 0.5-8 keV luminosities in the range of 10^43-10^45 ergs s^-1 We have analysed the AGN fraction of sources in the protocluster as a function of local LAE source density and find suggestive evidence for a correlation between AGN fraction and local LAE source density (at the 96 per cent confidence level), implying that supermassive black hole growth at z = 3 is strongest in the highest density regions.

Accepted for publication in MNRAS (19 pages, 13 figure, and 6 tables). Point-source catalogs and data products are available at http://astro.dur.ac.uk/~dma/SSA22/

References in corpus (15)

• The UKIRT Infrared Deep Sky Survey (UKIDSS)
• X-ray spectral properties of AGN in the Chandra Deep Field South
• Ly-alpha Emission-Line Galaxies at z = 3.1 in the Extended Chandra Deep Field South
• Spitzer's Contribution to the AGN Population
• The Vimos VLT Deep Survey: Global properties of 20000 galaxies in the I_AB<=22.5 WIDE survey
• A new method for determining the sensitivity of X-ray imaging observations and the X-ray number counts
• Chandra Multiwavelength Project X-ray Point Source Catalog
• The Chandra Deep Protocluster Survey: Ly-alpha Blobs are powered by heating, not cooling
• Spatial correlation between submillimetre and Lyman-alpha galaxies in the SSA 22 protocluster
• A Chandra Search for Coronal X Rays from the Cool White Dwarf GD 356
• Tracing the Mass-Dependent Star Formation History of Late-Type Galaxies using X-ray Emission: Results from the Chandra Deep Fields
• The clustering of radio galaxies at z~0.55 from the 2SLAQ LRG survey
• The X-ray Properties of Early-Type Galaxies in the Extended Chandra Deep Field-South
• The discovery of a massive supercluster at z=0.9 in the UKIDSS DXS
• The Properties and Redshift Evolution of Intermediate-Luminosity Off-Nuclear X-ray Sources in the Chandra Deep Fields

Cited by in corpus (56)

• The Chandra Deep Field-South Survey: 4 Ms Source Catalogs
• What Drives the Growth of Black Holes?
• The Chandra Deep Field-South Survey: 7 Ms Source Catalogs
• Cosmic X-ray Surveys of Distant Active Galaxies: The Demographics, Physics, and Ecology of Growing Supermassive Black Holes
• The SCUBA-2 Cosmology Legacy Survey: 850um maps, catalogues and number counts
• Innovations in the Analysis of Chandra-ACIS Observations
• The 2 Ms Chandra Deep Field-North Survey and the 250 ks Extended Chandra Deep Field-South Survey: Improved Point-Source Catalogs
• Gas filaments of the cosmic web located around active galaxies in a proto-cluster
• The Ubiquity of Coeval Starbursts in Massive Galaxy Cluster Progenitors
• ALMA Deep Field in SSA22: A concentration of dusty starbursts in a z=3.09 protocluster core
• ALMA Deep Field in SSA22: Source Catalog and Number Counts
• Emergence of an Ultra-Red Ultra-Massive Galaxy Cluster Core at $z=4$
• AzTEC/ASTE 1.1 mm survey of SSA22: Counterpart identification and photometric redshift survey of submillimeter galaxies
• Concurrent Supermassive Black Hole and Galaxy Growth: Linking Environment and Nuclear Activity in z = 2.23 H-alpha Emitters
• The Chandra Deep Fields: Lifting the Veil on Distant Active Galactic Nuclei and X-Ray Emitting Galaxies
• The ALMA-ALPAKA survey I: high-resolution CO and [CI] kinematics of star-forming galaxies at z = 0.5-3.5
• Mock catalogs for the extragalactic X-ray sky: simulating AGN surveys with Athena and with the AXIS probe
• The Formation of the massive galaxies in the SSA22 z=3.1 protocluster
• Herschel protocluster survey: A search for dusty star-forming galaxies in protoclusters at z=2-3
• NIR spectroscopic observation of massive galaxies in the protocluster at z = 3.09
• Lyman continuum leaking AGN in the SSA22 field
• Submillimeter Array Identification of the Millimeter-Selected Galaxy SSA22-AzTEC1: A Protoquasar in a Protocluster?
• Deciphering Lyman $\alpha$ blob 1 with deep MUSE observations
• ALMA Deep Field in SSA22: Survey Design and Source Catalog of a 20 arcmin^2 Survey at 1.1mm
• An extremely dense group of massive galaxies at the centre of the protocluster at z = 3.09 in the SSA22 field
• ALMA Deep Field in SSA22: A near-infrared-dark submillimeter galaxy at z=4.0
• Spectral Properties of Galaxies in Void Regions
• A detailed study of massive galaxies in a protocluster at z=3.13
• A census of galaxy constituents in a Coma Progenitor observed at z>3
• An AGN with an ionized gas outflow in a massive quiescent galaxy in a protocluster at $\mathbf{z}=3.09$
• Chandra reveals a luminous Compton-thick QSO powering a $Ly\alpha$ blob in a $z=4$ starbursting protocluster
• An Extragalactic Spectroscopic Survey of the SSA22 Field
• ALMA observations of a z~3.1 Protocluster: Star Formation from Active Galactic Nuclei and Lyman-Alpha Blobs in an Overdense Environment
• Deep submillimeter and radio observations in the SSA22 field. I. Powering sources and Lyα escape fraction of Lyα blobs
• Linking Stellar Coronal Activity and Rotation at 500 Myr: A Deep Chandra Observation of M37
• On the Nature of AGN and Star Formation Enhancement in the $z=3.1$ SSA22 Protocluster: The HST WFC3 IR View
• The deep Chandra survey in the SDSS J1030+0524 field
• The candidate cluster and protocluster catalog (CCPC) of spectroscopically identified structures spanning $2.74<z<3.71$
• Where Outflows Meet Inflows: Gas Kinematics in SSA22 Lyman-$\alpha$ Blob 2 Decoded by Advanced Radiative Transfer Modelling
• Fast SMBH growth in the SPT2349--56 protocluster at $z=4.3$
• The environments of Ly$\alpha$ blobs I: Wide-field Ly$\alpha$ imaging of TN J1338-1942, a powerful radio galaxy at $z\simeq 4.1$ associated with a giant Ly$\alpha$ nebula
• Revisiting the Properties of X-ray AGN in the SSA22 Protocluster: Normal SMBH and Host-Galaxy Growth for AGN in a $z=3.09$ Overdensity
• Substructure within the SSA22 protocluster at $z\approx 3.09$
• Imaging Spectroscopy of Ionized Gaseous Nebulae around Optically Faint AGN at Redshift z ~ 2
• Bimodal morphologies of massive galaxies at the core of a protocluster at z=3.09 and the strong size growth of a brightest cluster galaxy
• A high dust emissivity index beta for a CO-faint galaxy in a filamentary Lyman-alpha nebula at z=3.1
• Enhancement of HI absorption associated with the $z=3.1$ large-scale proto-cluster and characteristic structures with AGNs sculptured over Gpc scale in the SSA22 field
• Spitzer's View of the Candidate Cluster and Protocluster Catalog (CCPC)
• Redshift identification of X-ray selected active galactic nuclei in the J1030 field: searching for large-scale structures and high-redshift sources
• Deep Submillimetre and Radio Observations in the SSA22 Field. II. Sub-millimetre source catalogue and number counts
• A massive quiescent galaxy confirmed in a protocluster at z=3.09
• X-ray Sources in the SSA22 Chandra Field
• LBT-MODS spectroscopy of high-redshift candidates in the Chandra J1030 field. A newly discovered z$\sim$2.8 large scale structure
• ADF22+: a declining faint end in the far-infrared luminosity function in the SSA22 protocluster at z=3.09
• On the Origin of the Strong Optical Variability of Emission-line Galaxies
• Searching Far and Long I: Pilot ALMA 2mm Follow-up of Bright Dusty Galaxies as a Redshift Filter