Abstract
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.
Publisher
Cambridge University Press (CUP)
Cited by
2 articles.
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1. Unbiased Searches for Quasars Beyond a Redshift of 3.5;Symposium - International Astronomical Union;1983
2. Unbiased Searches for Quasars Beyond a Redshift of 3.5;Early Evolution of the Universe and its Present Structure;1983