Minor Mergers of Galaxies: Theory and Observations

Details Minor Mergers of Galaxies: Theory and Observations Minor Mergers of Galaxies: Theory and Observations

Jul 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002ap%26ss.281..405b&link_type=abstract

Astrophysics and Space Science, v. 281, Issue 1, p. 405-406 (2002).

Astronomy and Astrophysics

Astrophysics

1

Minor Merger, Heating Of Galactic Disks, N-Body Simulations, Grape

Scientific paper

We compare results from numerical simulations with observations of edge-on galaxies interacting/merging with a small companion (Schwarzkopf and Dettmar,2000), hereafter S&D00). Observations show a clear influence of the merging and interacting process on disk scale parameters h (radial scalelength), z 0 (vertical scalelength) and their ratio (h/z 0), leading to a heating and thickening of the stellar disk. Our numerical simulations show the same behaviour but differ significantly in the magnitude of the change of the disk scale parameters.

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