The covering factor of high-redshift damped Lyman-α systems

Kanekar, N; Lane, W M; Momjian, E; Briggs, Franklin; Chengalur, Jayaram

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The covering factor of high-redshift damped Lyman-α systems

Date

2009

Authors

Kanekar, N

Lane, W M

Momjian, E

Briggs, Franklin

Chengalur, Jayaram

Publisher

Blackwell Publishing Ltd

Abstract

We have used the Very Long Baseline Array to image 18 quasars with foreground damped Lyman-α systems (DLAs) at 327, 610 or 1420 MHz, to measure the covering factor f of each DLA at or near its redshifted HI 21 cm line frequency. Including six systems fro