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Redshift distributions of steep and flat-spectrum radio quasars and relativistic beaming

Published online by Cambridge University Press:  19 July 2016

V.K. Kapahi  and
V.K. Kulkarni
V.K. Kapahi
Affiliation:
T.I.F.R. Centre, P.B. No. 1234, Bangalore 560012, India
V.K. Kulkarni
Affiliation:
Radio Astronomy Centre (TIFR), P.B. No. 8, Ootacamund 643001, India

Abstract

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Redshift distributions of almost complete samples of steep as well as flat-spectrum radio quasars are investigated. It is found that flat-spectrum (core-dominated) quasars contain a higher fraction of high redshifts (z ≳ 1.4) compared to steep-spectrum ones. The difference can be understood in the ‘unified scheme’ in which the two types of quasars differ only in the orientation of their jet axes with respect to the observer.

Type
II. Continuum Emission
Information
Symposium - International Astronomical Union , Volume 119: Quasars , 1986 , pp. 207 - 210
Copyright
Copyright © Reidel 1986 

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