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QSO Absorption Lines and Cosmology

Published online by Cambridge University Press:  19 July 2016

Wallace L. W. Sargent
Wallace L. W. Sargent*
Affiliation:
Palomar Observatory, California Institute of Technology, Pasadena, Ca. 91125 U.S.A.

Abstract

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The properties of the different types of QSO absorption systems are briefly summarized. An overview is given of the potential applications of absorption lines in cosmology. Recent work on the cosmological evolution of the different types of absorbers is discussed. The physical properties of the intergalactic medium are discussed in the light of recent work on the “Lyman alpha clouds”. The uses of the lines for studies of the evolution of clustering in the Universe are described. Recent puzzling results on common absorption in pairs of QSOs, particularly Q1037–2704 and Q1038–2712, are summarized.

Type
Chapter XIV: Absorption in Quasi-Stellar Objects
Information
Symposium - International Astronomical Union , Volume 124: Observational Cosmology , 1987 , pp. 777 - 792
Copyright
Copyright © Reidel 1987 

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