Redshifts of galaxies close to bright QSO lines of sight
Bowen, David V.; Blades, J. Chris; Osmer, Samantha J.; Tytler, David
United Kingdom, United States
Abstract
To expand the known number of low-redshift galaxies lying close to bright (V<17.2) QSO lines of sight, we have identified 24 galaxies within 11 arcmin of nine QSOs which have been observed with the Hubble Space Telescope (HST). Galaxies are found between redshifts of 0.0114 and 0.145 and lie between 39 and 749h^-1kpc from QSO sightlines. Knowing the redshifts of these galaxies has already proved important in understanding results from HST programmes designed to search for UV absorption lines from low-redshift galaxies, and will enable future observations to probe the haloes of these galaxies in detail.