A catalogue of dwarf galaxy candidates around interacting galaxies

Deeg, H. J.; Munoz-Tunon, C.; Tenorio-Tagle, G.; Telles, E.; Vilchez, J. M.; Rodriguez-Espinosa, J. M.; Duc, P. A.; Mirabel, I. F.
Bibliographical reference

Astronomy and Astrophysics Supplement, v.129, p.455-462

Advertised on:
5
1998
Number of authors
8
IAC number of authors
4
Citations
11
Refereed citations
10
Description
We present results from the imaging of a sample of 12 interacting galaxies for which we have cataloged all potential dwarf systems in the vicinity of these strongly interacting galaxies. After careful cleaning of the images and applying a restrictive S/N criterion we have identified, measured and cataloged all possible extended objects in each field. On the frames, covering 11.4 x 10.5 arcmins, typically 100-200 non-stellar faint, extended objects were found. The vast majority (>98%) of these objects had not been previously identified. The number of expected objects in the magnitude range R= 18 - 19.5 exceeds the expected count of background galaxies. This supports the possibility that a density enhancement of extended objects around some interacting galaxies results from the addition of a locally formed dwarf galaxy population. Tables 4 to 15 only available in electronic form at CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/Abstract.html