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The Evolution of Neutral Gas in the Universe

Published online by Cambridge University Press:  01 August 2006

David Turnshek ,
Sandhya Rao ,
Eric Monier ,
Daniel Nestor  and
Anna Quider
David Turnshek
Affiliation:
University of Pittsburgh (turnshek@pitt.edu),
Sandhya Rao
Affiliation:
University of Pittsburgh (turnshek@pitt.edu),
Eric Monier
Affiliation:
SUNY Brockport,
Daniel Nestor
Affiliation:
IoA, Cambridge University
Anna Quider
Affiliation:
University of Pittsburgh (turnshek@pitt.edu),
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Abstract

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We give references to some of our work on the properties and evolution of the neutral gas component of the Universe (see reference list). The bulk of the observed neutral gas has been detected by identifying intervening damped Lyα (DLA) quasar absorption-line systems with N(H) ≥2 × 1020 atoms cm−2. We also present some initial results from a program to identify DLA absorbers near redshift z = 0.5 using Hubble Space Telescope ACS prism spectra (see Figure 1).

Keywords

quasars: absorption linesgalaxies: evolution
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S235: Galaxy Evolution Across the Hubble Time , August 2006 , pp. 440
Copyright
Copyright © International Astronomical Union 2007

References

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Rao, S., Turnshek, D., & Nestor, D. 2006, ApJ, 636, 610CrossRefGoogle Scholar
Turnshek, D. 2005, IAU Symp 199 (CUP), p 104 (astro-ph/0506701)CrossRefGoogle Scholar
Zibetti, S. 2006, astro-ph/0609760Google Scholar