The apparent angular size-redshift relation as a cosmological test

Details The apparent angular size-redshift relation as a cosmological test The apparent angular size-redshift relation as a cosmological test

Feb 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001padeu..11...47f&link_type=abstract

Publications of the Astronomy Department of the Eötvös University No. 11, Proceedings of the National Postgraduate Reunion in As

Astronomy and Astrophysics

Astrophysics

Radio Continuum: Galaxies, Cosmology: Observations

Scientific paper

The apparent angular size-redshift relation for a class of ``standard'' objects is a classical test of cosmological models. Different models predict different dependence of the apparent angular size of objects having a constant metric size (``standard rods'') with redshift. A brief review is given on how this test was used in the past, with special emphasis on objects observed with radio astronomical techniques. Recent results obtained from studying the parsec scale structures of radio-loud active galactic nuclei (AGNs) with the VLBI technique are summarised.

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