The Proximity Effect of QSO Metal Line Absorption Systems on Lyman α Forests

1995/12/06 by Xiangdong Shi, Shi, Xiangdong
Physics and Astronomy · #Astrophysics (astro-ph) #FOS: Physical sciences #astro-ph

paper · pdf · doi:10.48550/arxiv.astro-ph/9512030

uuencoded compressed postscript file, 6 pages. Also available at ftp://astro.queensu.ca/pub/shi/lyman.ps. Submitted to MNRAS

arxiv created 1995/12/06 · arxiv updated 2009/12/01

Abstract

The proximity effect of metal line absorption systems in spectra of high redshift quasars and quasar pairs is investigated through the distribution of \Lyalpha forests. No strong proximity effect is found down to 500 km/sec away from a metal line absorption system for lyman α clouds with 13.3≤log\NHI <13.8 at a redshift of ∼ 3. Its implication on properties of high redshift galaxies and \Lyalpha clouds is discussed. More high resolution spectra of high redshift quasars and pairs of quasars (whose lines of sight are separated by ∼ 0.3h^-1 to 1h^-1 Mpc) are needed so that the proximity effect can be reliably determined for \Lyalpha clouds with various \NHI and down to a closer distance.

Related

• Cosmological Adventures in the Lyman Forest
• Quasar Absorption Lines
• The proximity Effect on the Lyman alpha Forest due to a Foreground QSO
• Structure in the Lyman-Alpha Forest
• Low Redshift Lyman Alpha absorbers and their Connection with Galaxies