A Damped Lyα Absorption-Line System in an Apparent Void at Redshift 2.38
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 (~180kms-1) implies a significant mass.
- Publication:
-
Publications of the Astronomical Society of Australia
- Pub Date:
- August 2005
- DOI:
- 10.1071/AS05009
- arXiv:
- arXiv:astro-ph/0506525
- Bibcode:
- 2005PASA...22..245G
- Keywords:
-
- Large Scale Structure of Universe;
- quasars: individual (2138-4427);
- quasars: absorption lines;
- Astrophysics
- E-Print:
- Accepted for publication in Publ. Ast. Soc. Australia