SIMBAD references

2004ApJ...607...60G - Astrophys. J., 607, 60-75 (2004/May-3)

FIRST-2MASS sources below the APM detection threshold: a population of highly reddened quasars.

GLIKMAN E., GREGG M.D., LACY M., HELFAND D.J., BECKER R.H. and WHITE R.L.

Abstract (from CDS):

We have constructed a sample of bright near-infrared sources that are detected at radio wavelengths but undetected on the first-generation Palomar Observatory Sky Survey (POSSI) plates in order to search for a population of dust-obscured quasars. Optical and infrared spectroscopic follow-up of the sample has led to the discovery of 17 heavily reddened quasars (B-K>6.5), 14 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 ultraviolet-excess radio-selected quasars, finding that they make up ∼20% of the total quasar population for K≲15.5.

Abstract Copyright:

Journal keyword(s): ISM: Dust, Extinction - Galaxies: Quasars: General - Surveys

VizieR on-line data: <Available at CDS (J/ApJ/607/60): table2.dat>

Nomenclature: Table 2: F2M JHHMMSS.ss+DDMMSS.s N=69.

Simbad objects: 69

goto Full paper

goto View the reference in ADS

To bookmark this query, right click on this link: simbad:2004ApJ...607...60G and select 'bookmark this link' or equivalent in the popup menu


2020.07.08-06:43:11

© Université de Strasbourg/CNRS

    • Contact