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Quasar absorption line observations

Published online by Cambridge University Press:  25 May 2016

Jill Bechtold
Jill Bechtold*
Affiliation:
Steward Observatory, University of Arizona, Tucson, AZ 85721, USA

Abstract

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Searches for molecular gas in high redshift quasar absorption-line galaxies are reviewed. Despite a great deal of effort, firm evidence has been found in only a few, atypical cases — in clouds which are very close to a luminous quasar, or in objects which have been magnified by gravitational lensing. Recent observations suggest that normal galaxies at z ∼ 3 had star-formation rates about ten times that of the present-day Milky Way. Hence, detections of molecular gas by means of the millimeter transitions of CO will require more sensitive observations than have been attempted to date.

Type
Galaxies
Information
Symposium - International Astronomical Union , Volume 178: Molecules in Astrophysics: Probes and Processes , 1997 , pp. 525 - 534
Copyright
Copyright © Kluwer 1997 

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