The 2MASS Red AGN Survey

Details The 2MASS Red AGN Survey The 2MASS Red AGN Survey

Dec 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aas...197.7408c&link_type=abstract

American Astronomical Society, 197th AAS Meeting, #74.08; Bulletin of the American Astronomical Society, Vol. 32, p.1520

Astronomy and Astrophysics

Astronomy

4

Scientific paper

We present the latest results from the 2MASS Red AGN Survey, a simple, highly efficient 2MASS color-based survey that has already discovered 150 previously unknown, red AGN and QSOs. These objects are near-infrared-bright and relatively nearby; the median redshift of the sample is z=0.25, and all but two have z<0.7. The ratio of Type 1 AGN (Seyfert 1 and QSO) to Type 2 (Seyfert 2 and LINER) among the newly discovered objects is 3:1. The extrapolated surface density of the red AGN is ~0.5 deg-2 for Ks<=14.5 mag. The space density of the 2MASS-discovered Type 1 AGN inferred from the {Ks} luminosity function is comparable to that of optical- and UV-selected samples. The redshift and color distributions, source counts, and polarization properties of the 2MASS red AGN sample all suggest that it is the obscured ``tail" of the general AGN population. This obscured population may comprise a significant fraction of the sources detected in future very deep near- and mid-IR surveys.

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