Radio galaxies and quasars in cosmology

The paper describes the uses of radio galaxies and quasars in cosmological studies due to their high radio and/or optical luminosity. These include measurements of the distributions of radio galaxies and quasars in time, their use as probes of intervening matter through the study of quasar absorptio...

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Bibliographic Details
Published in:Physica scripta 1992-01, Vol.1992, p.51-56
Main Author: Shaver, P A
Format: Article
Language:English
Subjects:
Astronomy
Cosmology
Earth, ocean, space
Exact sciences and technology
Observational cosmology (including hubble constant, distance scale, cosmological constant, early universe, etc.)
Stellar systems. Galactic and extragalactic objects and systems. The universe
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Summary:The paper describes the uses of radio galaxies and quasars in cosmological studies due to their high radio and/or optical luminosity. These include measurements of the distributions of radio galaxies and quasars in time, their use as probes of intervening matter through the study of quasar absorption lines and gravitational lensing, and their possible use for determination of cosmological parameters. The original expectation of using these objects to determine H subzero and q subzero may be fulfilled. (I.S.)
ISSN:1402-4896
0281-1847
0031-8949
1402-4896
DOI:10.1088/0031-8949/1992/T43/006