Discovering the missing 2.2 < z < 3 quasars by combining optical variability and optical/near-infrared colors
The identification of quasars in the redshift range 2.2 < z < 3 is known to be very inefficient because the optical colors of such quasars are indistinguishable from those of stars. Recent studies have proposed using optical variability or near-infrared (near-IR) colors to improve the identification of the missing quasars in this redshift range. Here we present a case study combining both methods. We select a sample of 70 quasar candidates from variables in Sloan Digital Sky Survey (SDSS)...[Show more]
|Collections||ANU Research Publications|
|01_Wu_Discovering_the_missing_2.2_<_2011.pdf||457.06 kB||Adobe PDF|
Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.