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Quasars and Cosmological Evolution

Published online by Cambridge University Press:  07 February 2017

Maarten Schmidt
Maarten Schmidt*
Affiliation:
Hale Observatories Pasadena, California, U.S.A.

Extract

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The first evidence that quasars exhibit a non-uniform distribution in the universe was obtained ten years ago from a sample of 33 quasars in the 3CR catalogue. Much larger samples of radio quasars are now available and we will discuss the results in terms of an exponential decrease of quasar numbers with cosmic time. Only a few samples of optically selected quasars exist. We will show that their counts indicate a non-uniform space distribution, even if the redshifts are non-cosmological.

Type
IV. Observational Evidence for Cosmological Evolution
Information
Symposium - International Astronomical Union , Volume 79: The Large Scale Structure of the Universe , 1978 , pp. 289 - 293
Copyright
Copyright © Reidel 1978 

References

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