Candidate Type II Quasars from the Sloan Digital Sky Survey: I. Selection and Optical Properties of a Sample at 0.3<Z<0.83

Details Candidate Type II Quasars from the Sloan Digital Sky Survey: I. Selection and Optical Properties of a Sample at 0.3<Z<0.83 Candidate Type II Quasars from the Sloan Digital Sky Survey: I. Selection and Optical Properties of a Sample at 0.3<Z<0.83

2003-09-20

arxiv.org/abs/astro-ph/0309551v1

Astron.J.126:2125,2003

Astronomy and Astrophysics

Astrophysics

Accepted to AJ (November issue), 46 pages including 2 tables and 15 figures, the full version of Table 1 is available at htt

Scientific paper

10.1086/378610

Type II quasars are the long-sought luminous analogs of type II (narrow emission line) Seyfert galaxies, suggested by unification models of active galactic nuclei (AGN) and postulated to account for an appreciable fraction of the cosmic hard X-ray background. We present a sample of 291 type II AGN at redshifts 0.3

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