Variable and Transient Radio Sources in the FIRST Survey

Details Variable and Transient Radio Sources in the FIRST Survey Variable and Transient Radio Sources in the FIRST Survey

2011-07-29

arxiv.org/abs/1107.5901v7

2011, ApJ, 742, 49 & 2012, ApJ, 746, 114

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

63 pages, 18 encapsulated postscript figures (19 if individual subfigures are counted), 3 tables. LaTeX style file fltpage.sty

Scientific paper

A comprehensive search for variable and transient radio sources has been conducted using ~55,000 snapshot images of the FIRST survey. We present an analysis leading to the discovery of 1,627 variable and transient objects down to mJy levels over a wide range of timescales (few minutes to years). Variations observed range from 20% to a factor of 25. Multi-wavelength matching for counterparts reveals the diverse classes of objects exhibiting variability, ranging from nearby stars and pulsars to galaxies and distant quasars. Interestingly, more than half of the objects in the sample have either no classified counterparts or no corresponding sources at any other wavelength and require multi-wavelength follow-up observations. We discuss these classes of variables and speculate on the identity of objects that lack multi-wavelength counterparts.

Affiliated with

Also associated with

No associations

Rating

Variable and Transient Radio Sources in the FIRST Survey does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Variable and Transient Radio Sources in the FIRST Survey, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable and Transient Radio Sources in the FIRST Survey will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-318537