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Morphological Type Correlation between Nearest Neighbor Pairs of Galaxies

Published online by Cambridge University Press:  12 April 2016

Tomohiko Yamagata
Tomohiko Yamagata*
Affiliation:
National Astronomical Observatory, Mitaka, Tokyo 181, Japan

Extract

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Although the morphological type of galaxies is one of the most fundamental properties of galaxies, its origin and evolutionary processes, if any, axe not yet fully understood. It has been established that the galaxy morphology strongly depends on the environment in which the galaxy resides (e.g. Dressler 1980).

Galaxy pairs correspond to the smallest scales of galaxy clustering and may provide important clues to how the environment influences the formation and evolution of galaxies. Several investigators pointed out that there is a tendency for pair galaxies to have similar morphological types (Karachentsev and Karachentseva 1974, Page 1975, Noerdlinger 1979).

We analyzed morphological type correlation for 18,364 nearest neighbor pairs of galaxies identified in the magnetic tape version of the Center for Astrophysics Redshift Catalogue (Huchra 1987, hereafter CfA Catalog).

Type
I. Classical Observations of Pairs
Information
International Astronomical Union Colloquium , Volume 124: Paired and Interacting Galaxies , 1990 , pp. 25 - 31
Copyright
Copyright © NASA 1990

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