The diversity of ring galaxies and their origin

Details The diversity of ring galaxies and their origin The diversity of ring galaxies and their origin

Dec 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976sval....2..204v&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 2, Nov. 1976, p. 520-523.) Soviet Astronomy Letters, vol. 2, Nov.-Dec. 1976, p. 204-206

Astronomy and Astrophysics

Astronomy

4

Galactic Evolution, Galactic Nuclei, Ring Galaxies, Spiral Galaxies, Collisions

Scientific paper

The origin of ring galaxies with off-center nuclei and without nuclei but with a satellite galaxy has been explained in terms of head-on collisions between two galaxies. This letter shows that such objects are a variant of ring galaxies with central nuclei and have forms linking them to normal S and SB galaxies. It is concluded that ring galaxies without nuclei could have been formed during catastrophic collisions but that a common noncatastrophic genesis is more probable for the other objects.

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