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Type II Quasars from the SDSS

Nadia L. Zakamska·Michael A. Strauss·Julian H. Krolik·Timothy M. Heckman
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Abstract

Type II quasars are suggested by unification models of Active Galactic Nuclei as luminous analogs of Seyfert 2 galaxies. A number of different methods have been used hitherto to discover type II quasars, but only a handful have been found. We selected about 150 type II quasar candidates from the SDSS spectroscopic database; these objects have strong narrow high-ionization emission lines. We describe the selection procedure and estimate intrinsic luminosities of these optically obscured AGN. A campaign to perform a multi-wavelength follow-up of the sample is now underway.

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Nadia L. Zakamska, Michael A. Strauss, Julian H. Krolik, Timothy M. Heckman. 2003-10-20. Type II Quasars from the SDSS. https://arxiv.org/abs/astro-ph/0310587

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