A 1420 MHz Catalog of Compact Sources in the Northern Galactic Plane
文献类型:期刊论文
作者 | Taylor,A. R.3,5; Leahy,D. A.1; Tian,W. W.4; Sunstrum,C.1; Kothes,R.2; Landecker,T. L.2; Ransom,R. R2; Higgs,L. A.2 |
刊名 | The Astronomical Journal
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出版日期 | 2017-02-17 |
卷号 | 153期号:3 |
关键词 | catalogs radio continuum: general surveys |
ISSN号 | 0004-6256 |
DOI | 10.3847/1538-3881/153/3/113 |
英文摘要 | Abstract We present a catalog of compact sources of radio emission at 1420 MHz in the northern Galactic plane from the Canadian Galactic Plane Survey. The catalog contains 72,758 compact sources with an?angular size less than 3′ within the Galactic longitude range 52°???192° down to a 5σ detection level of ~1.2 mJy. Linear polarization properties are included for 12,368 sources with signals greater than 4σQU in the Canadian Galactic Plane Survey (CGPS) Stokes Q and U images at the position of the total intensity peak. We compare CGPS flux densities with cataloged flux densities in the Northern VLA Sky Survey catalog for 10,897 isolated unresolved sources with CGPS flux density greater than 4 mJy to search for sources that show variable flux density on timescales of several years. We identify 146 candidate variables that exhibit high fractional variations between the two surveys. In addition, we identify 13 candidate transient sources that have CGPS flux density above 10 mJy but are not detected in the Northern VLA Sky Survey. |
语种 | 英语 |
WOS记录号 | IOP:0004-6256-153-3-113 |
出版者 | The American Astronomical Society |
源URL | [http://ir.bao.ac.cn/handle/114a11/36100] ![]() |
专题 | 中国科学院国家天文台 |
作者单位 | 1.Department of Physics and Astronomy, University of Calgary, Canada 2.Dominion Radio Astrophysical Observatory, Herzberg Programs in Astronomy and Astrophysics National Research Council of Canada, Canada 3.Department of Physics and Astronomy, University of the Western Cape, South Africa 4.National Astronomical Observatories, Chinese Academy of Sciences, Beijing Shi, China 5.Inter-University Institute for Data Intensive Astronomy, and Department of Astronomy, University of Cape Town Department of Physics, University of the Western Cape, South Africa |
推荐引用方式 GB/T 7714 | Taylor,A. R.,Leahy,D. A.,Tian,W. W.,et al. A 1420 MHz Catalog of Compact Sources in the Northern Galactic Plane[J]. The Astronomical Journal,2017,153(3). |
APA | Taylor,A. R..,Leahy,D. A..,Tian,W. W..,Sunstrum,C..,Kothes,R..,...&Higgs,L. A..(2017).A 1420 MHz Catalog of Compact Sources in the Northern Galactic Plane.The Astronomical Journal,153(3). |
MLA | Taylor,A. R.,et al."A 1420 MHz Catalog of Compact Sources in the Northern Galactic Plane".The Astronomical Journal 153.3(2017). |
入库方式: OAI收割
来源:国家天文台
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