SwiftAGN&ClusterSurvey(SACS)Total-Band(0.2-10keV)PointSourceCatalog

Description

The Swift Active galactic nucleus (AGN) and Cluster Survey (SACS) uses 125 deg<sup>2</sup> of Swift X-Ray Telescope (XRT) serendipitous fields with variable depths surrounding gamma-ray bursts to provide a medium depth (4 x 10<sup>-15</sup> erg cm<sup>-2</sup> s<sup>-1</sup>) and medium area survey filling the gap between deep, narrow Chandra/XMM-Newton surveys and wide, shallow ROSAT surveys. In the reference paper, a catalog of 22,563 point sources and 442 extended sources, and the number counts of the AGN and galaxy cluster populations are presented. SACS provides excellent constraints on the AGN number counts at the bright end with negligible uncertainties due to cosmic variance, and these constraints are consistent with previous measurements. The authors use Wide-field Infrared Survey Explorer (WISE) mid-infrared(MIR) colors to classify the sources. For AGNs, they can roughly separate the point sources into MIR-red and MIR-blue AGNs, finding roughly equal numbers of each type in the soft X-ray band (0.5-2.0 keV), but fewer MIR-blue sources in the hard X-ray band (2-8 keV). The cluster number counts, with 5% uncertainties from cosmic variance, are also consistent with previous surveys but span a much larger continuous flux range. Deep optical or IR followup observations of this cluster sample will significantly increase the number of higher redshift (z > 0.5) X-ray-selected clusters. This HEASARC table contains the list of 22,563 Swift XRT point sources which were detected in the total X-ray band image (0.2-10 keV) using wavdetect with a false positive threshold of 10<sup>-6</sup> (contained in Table 1 of the reference paper). The authors consider these sources to be AGN candidates. This table was created by the HEASARC in June 2015 based on an electronic version of Table 1 of the reference paper, the list of Swift XRT point sources detected in the total X-ray (0.2-10 keV) band, which was obtained from the ApJS web site. This is a service provided by NASA HEASARC .

Resources

Name Format Description Link
5 https://heasarc.gsfc.nasa.gov%2FW3Browse%2Fall%2Fsacstpscat.html
5 https://heasarc.gsfc.nasa.gov%2Fxamin%2Fvo%2Fcone%3Fshowoffsets%26table%3Dsacstpscat%26
21 sacstpscat.html https://heasarc.gsfc.nasa.gov/W3Browse/all/sacstpscat.html
5 https://heasarc.gsfc.nasa.gov/xamin/vo/cone?showoffsets&table=sacstpscat&
5 http://wise2.ipac.caltech.edu/docs/release/allsky/
5 https://irsa.ipac.caltech.edu/SCS?table=allsky_4band_p3as_psr&
21 sacstpscat.html https://heasarc.gsfc.nasa.gov/W3Browse/all/sacstpscat.html
5 https://heasarc.gsfc.nasa.gov/xamin/vo/cone?showoffsets&table=sacstpscat&

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