FIRST-2MASS Sources Below the APM Detection Threshold: A Population of Highly Reddened Quasars

Details FIRST-2MASS Sources Below the APM Detection Threshold: A Population of Highly Reddened Quasars FIRST-2MASS Sources Below the APM Detection Threshold: A Population of Highly Reddened Quasars

2004-02-16

arxiv.org/abs/astro-ph/0402386v1

Astrophys.J. 607 (2004) 60-75

Astronomy and Astrophysics

Astrophysics

40 pages, 10 figures. Accepted by ApJ

Scientific paper

10.1086/383305

We have constructed a sample of bright near-infrared sources which are detected at radio wavelengths but undetected on the POSS I plates in order to search for a population of dust-obscured quasars. Optical and infrared spectroscopic followup of the sample has led to the discovery of seventeen heavily reddened quasars (B-K>6.5), fourteen of which are reported here for the first time. This has allowed us to define a region in the R-K, J-K color plane in which 50% of the radio-selected objects are highly reddened quasars. We compare the surface density of this previously overlooked population to that of UVX- radio-selected quasars, finding that they make up ~20% of the total quasar population for K < 15.5.

Affiliated with

Also associated with

No associations

Rating

FIRST-2MASS Sources Below the APM Detection Threshold: A Population of Highly Reddened Quasars 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 FIRST-2MASS Sources Below the APM Detection Threshold: A Population of Highly Reddened Quasars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and FIRST-2MASS Sources Below the APM Detection Threshold: A Population of Highly Reddened Quasars will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-237076