Astronomy and Astrophysics – Astrophysics
Scientific paper
Jun 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983acaps...3....1z&link_type=abstract
(Acta Astrophysica Sinica, vol. 3, no. 1, 1983, p. 1-8) Chinese Astronomy and Astrophysics (ISSN 0275-1062), vol. 7, June 1983,
Astronomy and Astrophysics
Astrophysics
2
Galaxies, Quasars, Spatial Distribution, Statistical Distributions, Astronomical Catalogs, Magnitude, Red Shift, Virgo Galactic Cluster
Scientific paper
Three distinct and representative sources of quasar data are used in this paper: (1) the Revised Optical Catalog of QSOs, (2) the quasars in the -40 deg CTIO Curtis Schmidt Survey, and (3) the quasars in the Virgo Cluster region. Their redshift and magnitude distributions on various scales and their possible association with galaxies are analysed statistically. The preliminary conclusions are as follows. (1) The redshift and magnitude distributions on various scales are non-uniform. (2) The non-uniformity appears to be greater in the two local samples. (3) There is no evidence of a general association of quasars with field galaxies. (4) A general association of quasars with brighter cluster galaxies is statistically significant. (5) It seems likely that not all quasars have the same origin, some being local, some cosmological.
He Xian-Tu
Zhao Jian-Ling
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