Galaxies in group and field environments: a comparison of optical-NIR luminosities and colors

Details Galaxies in group and field environments: a comparison of optical-NIR luminosities and colors Galaxies in group and field environments: a comparison of optical-NIR luminosities and colors

2003-08-08

arxiv.org/abs/astro-ph/0308139v1

Astron.Astrophys.410:461-470,2003

Astronomy and Astrophysics

Astrophysics

11 pages, 10 eps figures, A&A in press

Scientific paper

10.1051/0004-6361:20031233

We compare properties of galaxies in loose groups with those in field environment by analyzing the Nearby Optical Galaxy (NOG) catalog of galaxy systems. We consider as group galaxies, objects belonging to systems with at least five members identified by means of the "friends of friends method", and, as field galaxies, all galaxies with no companions. We analyze both a magnitude--limited sample of 959 and 2035 galaxies (groups vs. field galaxies, respectively, B<14 mag, and 2000

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