A merger scenario for NGC 7252 - A tale of two tails

Details A merger scenario for NGC 7252 - A tale of two tails A merger scenario for NGC 7252 - A tale of two tails

Mar 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...369..111b&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 369, March 1, 1991, p. 111-120.

Mathematics

Logic

32

Disk Galaxies, Elliptical Galaxies, Galactic Structure, Gravitational Effects, Interacting Galaxies, Astronomical Photography, Peculiar Galaxies

Scientific paper

Schweizer has proposed that NGC 7252 (Arp 226) recently formed from the merger of two disk galaxies and will ultimately relax into an elliptical galaxy. In this paper, the suspected collision event was successfully simulated with a gravitational interaction code, thereby reinforcing the merger hypothesis for the origin of this object. A careful selection of the disk and orbital model parameters lead to a good match to the present appearance and dynamics of this galaxy. The best simulation relaxes into an object which morphologically and kinematically resembles a normal elliptical galaxy.

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