Astronomy and Astrophysics – Astrophysics
Scientific paper
Oct 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991ap%26ss.184..273c&link_type=abstract
Astrophysics and Space Science (ISSN 0004-640X), vol. 184, no. 2, Oct. 1991, p. 273-280.
Astronomy and Astrophysics
Astrophysics
3
Disk Galaxies, Interacting Galaxies, Approximation, Collisions, Frequency Distribution
Scientific paper
A study of the expected frequency of merging galaxies, involving disk systems, is conducted on the basis of the collision theory using the impulsive approximation. The results indicate that the expected frequency of such mergers is several orders of magnitude smaller than the observational values if mergers taking place in a single crossing time are considered. The expected frequency of elliptical pairs, spiral-elliptical pairs, and spiral pairs in merger is of the same order of magnitude, though spiral pairs seem to have marginally more abundance as compared to the other two types.
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