Disturbed isolated galaxies: indicators of a dark galaxy population?

Details Disturbed isolated galaxies: indicators of a dark galaxy population? Disturbed isolated galaxies: indicators of a dark galaxy population?

2006-02-13

arxiv.org/abs/astro-ph/0602271v1

Astronomy and Astrophysics

Astrophysics

5 pages, 1 figure. Astronomy and Astrophysics, accepted

Scientific paper

10.1051/0004-6361:20054497

We report the results of our search for disturbed (interacting) objects among very isolated galaxies. The inspections of 1050 northern isolated galaxies from KIG and 500 nearby, very isolated galaxies situated in the Local Supercluster yielded five and four strongly disturbed galaxies, respectively. We suggest that the existence of "dark" galaxies explains the observed signs of interaction. This assumption leads to a cosmic abundance of dark galaxies (with the typical masses for luminous galaxies) that is less than ~1/20 the population of visible galaxies.

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