STATISTICAL CHARACTERIZATION OF THE CHANDRA SOURCE CATALOG
The first release of the Chandra Source Catalog (CSC) contains ~95,000 X-ray sources in a total area of 0.75% of the entire sky, using data from ~3900 separate ACIS observations of a multitude of different types of X-ray sources. In order to maximize the scientific benefit of such a large, heterogen...
| Main Authors: | , , |
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| Format: | Article |
| Language: | en_US |
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IOP Publishing
2015
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| Online Access: | http://hdl.handle.net/1721.1/95714 |
| _version_ | 1826214619990982656 |
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| author | Houck, John C. Davis, John E. Nowak, Michael A. |
| author2 | MIT Kavli Institute for Astrophysics and Space Research |
| author_facet | MIT Kavli Institute for Astrophysics and Space Research Houck, John C. Davis, John E. Nowak, Michael A. |
| author_sort | Houck, John C. |
| collection | MIT |
| description | The first release of the Chandra Source Catalog (CSC) contains ~95,000 X-ray sources in a total area of 0.75% of the entire sky, using data from ~3900 separate ACIS observations of a multitude of different types of X-ray sources. In order to maximize the scientific benefit of such a large, heterogeneous data set, careful characterization of the statistical properties of the catalog, i.e., completeness, sensitivity, false source rate, and accuracy of source properties, is required. Characterization efforts of other large Chandra catalogs, such as the ChaMP Point Source Catalog or the 2 Mega-second Deep Field Surveys, while informative, cannot serve this purpose, since the CSC analysis procedures are significantly different and the range of allowable data is much less restrictive. We describe here the characterization process for the CSC. This process includes both a comparison of real CSC results with those of other, deeper Chandra catalogs of the same targets and extensive simulations of blank-sky and point-source populations. |
| first_indexed | 2024-09-23T16:08:22Z |
| format | Article |
| id | mit-1721.1/95714 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T16:08:22Z |
| publishDate | 2015 |
| publisher | IOP Publishing |
| record_format | dspace |
| spelling | mit-1721.1/957142022-10-02T06:35:31Z STATISTICAL CHARACTERIZATION OF THE CHANDRA SOURCE CATALOG Houck, John C. Davis, John E. Nowak, Michael A. MIT Kavli Institute for Astrophysics and Space Research Houck, John C. Davis, John E. Nowak, Michael A. The first release of the Chandra Source Catalog (CSC) contains ~95,000 X-ray sources in a total area of 0.75% of the entire sky, using data from ~3900 separate ACIS observations of a multitude of different types of X-ray sources. In order to maximize the scientific benefit of such a large, heterogeneous data set, careful characterization of the statistical properties of the catalog, i.e., completeness, sensitivity, false source rate, and accuracy of source properties, is required. Characterization efforts of other large Chandra catalogs, such as the ChaMP Point Source Catalog or the 2 Mega-second Deep Field Surveys, while informative, cannot serve this purpose, since the CSC analysis procedures are significantly different and the range of allowable data is much less restrictive. We describe here the characterization process for the CSC. This process includes both a comparison of real CSC results with those of other, deeper Chandra catalogs of the same targets and extensive simulations of blank-sky and point-source populations. United States. National Aeronautics and Space Administration (Grant NAS 8-03060) United States. National Aeronautics and Space Administration (Grant SV3-73016) 2015-02-27T14:51:10Z 2015-02-27T14:51:10Z 2011-05 2010-11 Article http://purl.org/eprint/type/JournalArticle 0067-0049 1538-4365 http://hdl.handle.net/1721.1/95714 Primini, Francis A., John C. Houck, John E. Davis, Michael A. Nowak, Ian N. Evans, Kenny J. Glotfelty, Craig S. Anderson, et al. “STATISTICAL CHARACTERIZATION OF THE CHANDRA SOURCE CATALOG.” The Astrophysical Journal Supplement Series 194, no. 2 (May 27, 2011): 37. © 2011 The American Astronomical Society en_US http://dx.doi.org/10.1088/0067-0049/194/2/37 The Astrophysical Journal. Supplement Series Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf IOP Publishing American Astronomical Society |
| spellingShingle | Houck, John C. Davis, John E. Nowak, Michael A. STATISTICAL CHARACTERIZATION OF THE CHANDRA SOURCE CATALOG |
| title | STATISTICAL CHARACTERIZATION OF THE CHANDRA SOURCE CATALOG |
| title_full | STATISTICAL CHARACTERIZATION OF THE CHANDRA SOURCE CATALOG |
| title_fullStr | STATISTICAL CHARACTERIZATION OF THE CHANDRA SOURCE CATALOG |
| title_full_unstemmed | STATISTICAL CHARACTERIZATION OF THE CHANDRA SOURCE CATALOG |
| title_short | STATISTICAL CHARACTERIZATION OF THE CHANDRA SOURCE CATALOG |
| title_sort | statistical characterization of the chandra source catalog |
| url | http://hdl.handle.net/1721.1/95714 |
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