QSO Absorption Line Constraints on Intragroup High-Velocity Clouds

Abstract

We show that the number statistics of moderate redshift MgII and Lyman limit absorbers may rule out the hypothesis that high velocity clouds are infalling intragroup material.

4 pages, no figures; submitted to Astrophysical Journal Letters; revised version, more general and includes more about Braun and Burton CHVCs

References in corpus (2)

• Dark Matter Substructure in Galactic Halos
• The Space Density of Primordial Gas Clouds near Galaxies and Groups and their Relation to Galactic HVCs

Cited by in corpus (19)

• Highly-Ionized High-Velocity Gas in the Vicinity of the Galaxy
• Complex C: A Low-Metallicity High-Velocity Cloud Plunging into the Milky Way
• New perspectives on strong z=0.5 MgII absorbers: are halo-mass and equivalent width anti-correlated?
• The Population of Weak MgII Absorbers. II The Properties of Single-Cloud Systems
• High-velocity clouds as streams of ionized and neutral gas in the halo of the Milky Way
• A Survey of FUSE and HST Sightlines through High-Velocity Cloud Complex C
• A Hubble Space Telescope Study of Lyman Limit Systems: Census and Evolution
• The abundance of dark galaxies
• A Very Sensitive 21cm Survey for Galactic High-Velocity HI
• A Targeted Survey for HI Clouds in Galaxy Groups
• CaII and NaI absorption signatures from extraplanar gas in the halo of the Milky Way
• Where are the High Velocity Clouds in Local Group Analogs?
• Cold gas accretion by high-velocity clouds and their connection to QSO absorption-line systems
• An absorption-selected survey of neutral gas in the Milky Way halo
• A Limit on the Metallicity of Compact High Velocity Clouds
• Low Redshift QSO Lyman alpha Absorption Line Systems Associated with Galaxies
• High Velocity Cloud Edges and Mini-HVCs
• The HI Detection of Low Column Density Clouds and Galaxies
• On the origin of gaseous galaxy halos - Low-column density gas in the Milky Way halo