Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999ap%26ss.265..479s&link_type=abstract
Astrophysics and Space Science, v. 265, Issue 1/4, p. 479-480 (1999).
Astronomy and Astrophysics
Astrophysics
2
Scientific paper
We report on first results of a comprehensive study of interacting andmerging processes between spiral galaxies and small satellites to investigatethe effects of such events on the disk component of spirals. Analysis ofour newly obtained photometric data of about 125 edge-on galaxiesin optical and in NIR shows that there are considerable differencesbetween interacting and non-interacting galaxies concerning their absolutedisk scale parameters as well as their ratios (h/z 0).In comparison with normal spirals, the average heating factor perpendicular tothe disk plane of mergers is about 1.5. The most striking feature of thedistributions of (h/z 0) for both normal galaxies and mergers, is thetotal lack of typical flat disk axis ratios (i.e. that of late type ones)of (h/z 0) > 6 for mergers.
Dettmar Ralf-Juergen
Schwarzkopf Uwe
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