Multicolor surface photometry of brightest cluster galaxies.
Abstract
Two color (B - V and V - i) CCD photometry of the dominant galaxy (BCG) in five Bautz-Morgan type I clusters has been obtained at the 1.5 m Danish telescope at La Silla. In this paper we analyze their surface brightness and color profiles. All galaxies but one have surface brightness profiles that can be described by a de Vaucouleurs' law with similar effective surface brightness μ_e_ ~ 23.2 V mag arcsec^-2^ and effective radius r_e_ between 30 and 40 kpc. Average colors are alike in all the five galaxies and color gradients are small or absent.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- December 1992
- Bibcode:
- 1992A&A...266..127A
- Keywords:
-
- Astronomical Photometry;
- Brightness Distribution;
- Galactic Clusters;
- Charge Coupled Devices;
- Galactic Nuclei;
- Astrophysics