dc.contributor.author | Lehmer, B. D. | en_US |
dc.contributor.author | Alexander, D. M. | en_US |
dc.contributor.author | Chapman, S. C. | en_US |
dc.contributor.author | Smail, Ian | en_US |
dc.contributor.author | Bauer, F. E. | en_US |
dc.contributor.author | Brandt, W. N. | en_US |
dc.contributor.author | Geach, J. E. | en_US |
dc.contributor.author | Matsuda, Y. | en_US |
dc.contributor.author | Mullaney, J. R. | en_US |
dc.contributor.author | Swinbank, A. M. | en_US |
dc.date.accessioned | 2014-03-12T19:20:55Z | |
dc.date.available | 2014-03-12T19:20:55Z | |
dc.date.issued | 2009-07-24 | en_US |
dc.identifier.citation | Lehmer, B. D., D. M. Alexander, S. C. Chapman, Ian Smail, et al. 2009. "The Chandra Deep Protocluster Survey: Point-Source Catalogs for a 400 ks Observation of the z = 3.09 Protocluster in SSA22." Monthly Notices of the Royal Astronomical Society 400:299. | en_US |
dc.identifier.issn | 0035-8711 | |
dc.identifier.uri | http://hdl.handle.net/10222/45363 | |
dc.identifier.uri | http://dx.doi.org/10.1111/j.1365-2966.2009.15449.x | |
dc.description.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. | en_US |
dc.relation.ispartof | Monthly Notices of the Royal Astronomical Society | |
dc.title | The Chandra Deep Protocluster Survey: Point-Source Catalogs for a 400 ks Observation of the z = 3.09 Protocluster in SSA22 | en_US |
dc.title.alternative | arXiv:0907.4369 [astro-ph] | en_US |
dc.type | article | en_US |
dc.identifier.volume | 400 | |
dc.identifier.startpage | 299 | en_US |