A 1420 MHz catalog of compact sources in the Northern Galactic Plane

From National Research Council Canada

DOIResolve DOI: https://doi.org/10.3847/1538-3881/153/3/113
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Name affiliation
  1. National Research Council Canada. Herzberg Astronomy and Astrophysics
FormatText
TypeArticle
Journal titleThe Astronomical Journal
ISSN0004-6256
1538-3881
Volume153
Issue3
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° < ℓ < 192° down to a 5σ detection level of ~1.2 mJy. Linear polarization properties are included for 12,368 sources with signals greater than 4σ QU 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.
Publication date
PublisherIOP Publishing
LanguageEnglish
Peer reviewedYes
NPARC number23002184
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