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Article << Previous     |     Next >>   Contents Vol 22(3)

A Damped Lyα Absorption-Line System in an Apparent Void at Redshift 2.38

Leith E. H. Godfrey and Paul J. Francis

Publications of the Astronomical Society of Australia 22(3) 245 - 248

Abstract

We study the contents of an apparent void in the distribution of Lyα emitting galaxies at redshift 2.38. We show that this void is not empty, but contains a damped Lyα absorption-line system, seen in absorption against background QSO 2138-4427. Imaging does not reveal any galaxy associated with this absorption-line system, but it contains metals (Fe/H ~ –1.3), and its large velocity range (~180 km s–1) implies a significant mass.

Keywords: Large Scale Structure of Universe — quasars: individual (2138-4427) — quasars: absorption lines



Full text doi:10.1071/AS05009

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