Details

Autor(en) / Beteiligte

• Ross, Nicholas P
• McGreer, Ian D
• White, Martin
• Richards, Gordon T
• Myers, Adam D
• PALANQUE-DELABROUILLE, NATHALIE
• Strauss, Michael A
• Anderson, Scott F
• Shen, Yue
• Brandt, W N

Titel

THE SDSS-III BARYON OSCILLATION SPECTROSCOPIC SURVEY: THE QUASAR LUMINOSITY FUNCTION FROM DATA RELEASE NINE

Ist Teil von

• The Astrophysical journal, 2013-08, Vol.773 (1), p.1-27

Ort / Verlag

United States: American Astronomical Society

Erscheinungsjahr

2013

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• We present a new measurement of the optical quasar luminosity function (QLF), using data from the Sloan Digital Sky Survey-III: Baryon Oscillation Spectroscopic Survey (SDSS-III: BOSS). From the SDSS-III Data Release Nine, a uniform sample of 22,301 i [lap] 21.8 quasars are selected over an area of 2236 deg super(2), with confirmed spectroscopic redshifts between 2.2 < z < 3.5, filling in a key part of the luminosity-redshift plane for optical quasar studies. At z [lap] 2.2 our data are reasonably well fit by a pure luminosity evolution model, and only a weak signature of "AGN downsizing" is seen, in line with recent studies of the hard X-ray luminosity function. We compare our measured QLF to a number of theoretical models and find that models making a variety of assumptions about quasar triggering and halo occupation can fit our data over a wide range of redshifts and luminosities.