Uncloaking the High Redshift Galaxy Population With The Complete Optical and Radio Absorption Line System (CORALS) Survey
Abstract
We present the first results from the Complete Optical and Radio Absorption Line System (CORALS) survey for Damped Lyman Alpha (DLA) systems based on a radio-selected sample of quasars. We find that the number density and neutral gas content of CORALS DLAs is in good agreement with previous surveys. These results indicate that dust obscuration has probably not been responsible for a significant selection bias in the past, although the statistics still permit an underestimate of n(z) and OmegaDLA by up to a factor of about 2.
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