Quasars near NGC 520

Details Quasars near NGC 520 Quasars near NGC 520

Dec 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985pasp...97.1149a&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 97, Dec. 1985, p. 1149-1157.

Astronomy and Astrophysics

Astronomy

7

Extragalactic Radio Sources, Galaxies, Quasars, Red Shift, Ultraviolet Astronomy, Density Distribution

Scientific paper

Quasars are reported in an area 2.1 square degrees around the bright, disturbed galaxy NGC 520. For quasars brighter than m = 19.0 mag, areas to the southwest of NGC 520, in the direction of previously identified radio ejection, have a density of 2.9 per square degree or about 1.5 times the expected background density. Near NGC 520 the density increases until it reaches 15 times the expected background density for the four nearest quasars to the galaxy. Six of the seven nearest quasars to NGC 520 are aligned so accurately across the galaxy as to demonstrate physical association.

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