A systematic search for massive black hole binaries in SDSS spectroscopic sample

Details A systematic search for massive black hole binaries in SDSS spectroscopic sample A systematic search for massive black hole binaries in SDSS spectroscopic sample

2011-06-06

arxiv.org/abs/1106.1180v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

10 pages, 2 figures, accepted for publication in ApJ

Scientific paper

We present the results of a systematic search for massive black hole binaries in the Sloan Digital Sky Survey spectroscopic database. We focus on bound binaries, under the assumption that one of the black holes is active. In this framework, the broad lines associated to the accreting black hole are expected to show systematic velocity shifts with respect to the narrow lines, which trace the rest-frame of the galaxy. For a sample of 54586 quasars and 3929 galaxies at redshifts 0.1

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