Hostname: page-component-78c5997874-ndw9j Total loading time: 0 Render date: 2024-11-18T10:26:35.241Z Has data issue: false hasContentIssue false
  • English
  • Français

Correlation of low z Lyman-$\alpha$ absorbers with HI-selected galaxies

Published online by Cambridge University Press:  06 October 2005

Emma Ryan-Weber
Emma Ryan-Weber
Affiliation:
Institute of Astronomy, University of Cambridge, UK, email: eryan@ast.cam.ac.uk
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

In this work, observational evidence for the connection between low column density Lyman-$\alpha$ absorbers and large-scale structure traced by gas-rich galaxies is investigated. The H I Parkes All Sky Survey (HIPASS) galaxy catalogue is cross-correlated with known low redshift, low column density ($N_{\rm HI}<10^{15}$ cm$^{-2}$) Lyman-$\alpha$ absorbers from the literature. The absorber-galaxy cross-correlation function shows that on scales from 1–10 h$^{-1}$ Mpc, absorbers are embedded in halos with masses similar to that of galaxy groups.

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 1 , Colloquium C199: Probing Galaxies through Quasar Absorption Lines , March 2005 , pp. 472 - 474
Copyright
© 2005 International Astronomical Union