The Angular Diameter-Redshift Relation and Aspect Effects in Core-Dominated Quasars

Details The Angular Diameter-Redshift Relation and Aspect Effects in Core-Dominated Quasars The Angular Diameter-Redshift Relation and Aspect Effects in Core-Dominated Quasars

Jul 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997iraj...24..113u&link_type=abstract

Irish Astronomical Journal, 1997, 24(2), 113

Astronomy and Astrophysics

Astronomy

Scientific paper

Relativistic beaming and radio source orientation hypotheses are used to interpret the observed angular size-redshift (theta-z) relation for a well-defined sample of core-dominated quasars based on two Friedmann models. We show that the de-projected theta-z data favours a low density universe with Omega = 0.02 but shows a marked discrepancy with a high density universe Omega = 1. In addition we find that linear size is not correlated with both redshift and radio luminosity.

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