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The Evolution of Quasars Selected by Slitless Technique

Published online by Cambridge University Press:  19 July 2016

Z. G. Deng ,
Y. Y. Zhou  and
Y. Z. Liu
Z. G. Deng
Affiliation:
Department of Physics, Graduate School, Academia Sinica, Beijing, China
Y. Y. Zhou
Affiliation:
Center for Astrophysics, University of Science and Technology of China, Hefei, China
Y. Z. Liu
Affiliation:
Department of Physics, Graduate School, Academia Sinica, Beijing, China

Abstract

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After taking account of the selection effects in the identification of emission lines and choosing the sample within a narrow range of absolute magnitude, we can investigate the evolutionary function of quasars from their redshift distribution. From data given by slitless surveys with limiting apparent magnitude 19.5, we find that the evolutionary function takes form of ρ = ρo(1+z)6.5±1. The analysis has also showed that the observational redshift distribution of quasars is compatible with cosmological principle.

Type
Chapter XI: Quasi-Stellar Objects: Distribution and General Properties
Information
Symposium - International Astronomical Union , Volume 124: Observational Cosmology , 1987 , pp. 677 - 679
Copyright
Copyright © Reidel 1987 

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