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Title:
A Damped Lyalpha Absorption-Line System in an Apparent Void at Redshift 2.38
Authors:
Godfrey, Leith E. H.; Francis, Paul J.
Affiliation:
AA(Research School of Astronomy and Astrophysics, Australian National University, Canberra ACT 0200, Australia), AB(Research School of Astronomy and Astrophysics, Australian National University, Canberra ACT 0200, Australia )
Publication:
Publications of the Astronomical Society of Australia, Volume 22, Issue 3, pp. 245-248. (PASA Homepage)
Publication Date:
08/2005
Origin:
PASA
Astronomy Keywords:
Large Scale Structure of Universe, quasars: individual (2138-4427), quasars: absorption lines
DOI:
10.1071/AS05009
Bibliographic Code:
2005PASA...22..245G

Abstract

We study the contents of an apparent void in the distribution of Lyalpha emitting galaxies at redshift 2.38. We show that this void is not empty, but contains a damped Lyalpha 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 (~180kms-1) implies a significant mass.
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