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QSO Absorption Lines

Published online by Cambridge University Press:  04 August 2017

Bruce A. Peterson
Bruce A. Peterson*
Affiliation:
Mount Stromlo and Siding Spring Observatories, The Australian National University

Abstract

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The evidence for the evolution of the intergalactic clouds that produce the Lyman-alpha absorption lines in the spectra of QSOs is reviewed. The recent detection of OVI in clouds that produce both Lyman-alpha and Lyman-beta absorption lines is discussed. The identification of molecular hydrogen in the spectrum of 1442+101 (OQ172) is not confirmed by high resolution spectra.

Type
Research Article
Information
Symposium - International Astronomical Union , Volume 104: Early Evolution of the Universe and Its Present Structure , 1983 , pp. 349 - 357
Copyright
Copyright © Reidel 1983 

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