Column density distribution of galactic Ly alpha absorption systems

Citation
Mm. Cirkovic et S. Samurovic, Column density distribution of galactic Ly alpha absorption systems, ASTRO SP SC, 271(1), 2000, pp. 91-95
Citations number
19
Categorie Soggetti
Space Sciences
Journal title
ASTROPHYSICS AND SPACE SCIENCE
ISSN journal
0004640X → ACNP
Volume
271
Issue
1
Year of publication
2000
Pages
91 - 95
Database
ISI
SICI code
0004-640X(2000)271:1<91:CDDOGL>2.0.ZU;2-Q
Abstract
A simple consistency argument for hypothesis of the galactic halo origin of the Ly alpha forest absorption lines is advanced, based on the recent dete rmination of column-density vs. impact parameter relation for the low-redsh ift gaseous galactic haloes. It is shown that observations of neutral hydro gen absorption around luminous galaxies are consistent with the index of th e power-law column density distribution derived from statistical analyses o f large samples of high-redshift Ly alpha forest lines.