Morphological type correlation between nearest neighbor pairs of galaxies

Details Morphological type correlation between nearest neighbor pairs of galaxies Morphological type correlation between nearest neighbor pairs of galaxies

Mar 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...338..707y&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 338, March 15, 1989, p. 707-710.

Mathematics

Logic

5

Galactic Clusters, Galactic Evolution, Peculiar Galaxies, Spiral Galaxies, Astronomical Catalogs, Elliptical Galaxies, Hubble Constant, Morphology

Scientific paper

The morphological-type correlation of 16,930 nearest-neighbor pairs of galaxies is analyzed using the CfA Redshift Catalog of Galaxies (Huchra, 1987). There is a distinct tendency that the nearest-neighbor galaxy pairs have the same morphological subtype. A list of twin galaxies from the Atlas of Peculiar Galaxies (Arp, 1966) is also presented. Twin galaxies are binary galaxies which have not only the same morphological type but also very similar internal structure. Twin galaxies are regarded as the extreme case of the morphological-type correlation. Implications of these findings are discussed in the context of galaxy formation and evolution.

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