Statistics – Computation
Scientific paper
Jan 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991ap%26ss.175..215c&link_type=abstract
Astrophysics and Space Science (ISSN 0004-640X), vol. 175, no. 2, Jan. 1991, p. 215-223.
Statistics
Computation
4
Computational Astrophysics, Elliptical Galaxies, Interacting Galaxies, Spiral Galaxies, Galactic Bulge, Galactic Structure, Orbital Mechanics
Scientific paper
A study of the expected frequency of merging galaxies, involving disk-sphere systems, is conducted by use of the impulsive approximation. The results indicate that the expected frequencies of such galaxies is several orders of magnitude smaller than the observational value, if mergers taking place in a single crossing time or orbital period are considered. The expected frequency of elliptical pairs and spiral-elliptical pairs in merger is of the same order of magnitude, indicating that the two types of collisions are equally frequent.
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