The covering factor of high redshift damped Lyman-$\alpha$ systems

N. Kanekar, W. M. Lane, E. Momjian +2

We have used the Very Long Baseline Array to image 18 quasars with foreground damped Lyman-$\alpha$ systems (DLAs) at 327, 610 or 1420 MHz, to measure the covering factor $f$ of each DL…