Issue |
Astron. Astrophys. Suppl. Ser.
Volume 138, Number 2, August 1999
|
|
---|---|---|
Page(s) | 213 - 245 | |
DOI | https://doi.org/10.1051/aas:1999500 | |
Published online | 15 August 1999 |
Multi-spectral study of a new sample of Blue Compact Dwarf Galaxies*
II. B and R surface photometry of 22 southern objects
1
European Southern Observatory, Karl Schwarzschild St. 2, D–85748 Garching, Germany
2
ST-ECF, European Southern Observatory, Karl Schwarzchild St. 2, D–85748 Garching, Germany
3
Dept of Astronomy, University of Illinois at Urbana-Champaign, 1002 West Green Street Urbana, IL 61801, U.S.A. e-mail: caulet@astro.uiuc.edu
4
Previously affiliated to the Astrophysics Division, Space Science Department of the European Space Agency
5
Observatoire de Marseille and Institut Gassendi, (CNRS), 2 place Le Verrier, F–13248 Marseille Cedex 04, France
Send offprint request to: V. Doublier
Received:
22
January
1998
Accepted:
25
May
1999
We present the results of surface photometry on a new sample of Blue
Compact Dwarf galaxies (BCDGs), in continuation to a previous paper
(Doublier et al. 1997, hereafter Paper I). The 22 galaxies
(plus two companions)
discussed in the present paper have been selected
in the Southern Hemisphere, from several lists. An atlas containing
isophotal maps, surface brightnesses and color profiles of the
sample is given,
together with the tables containing the photometric parameters.
The results are
consistent with those obtained in Paper I for objects
selected from the Byurakan Surveys in the Northern
hemisphere. Similarly, we find about one fourth of the BCDGs showing
a dominant
brightness distribution component, one fourth of
the BCDG showing a dominant exponential surface brightness profile,
and about half of them show composite brightness
distributions. Integrated properties, colors, mean surface brightnesses and
luminosity-radius relations are
investigated and discussed for the objects presented in this paper and
Paper I. We
found that
BCDGs tend to show a different behaviour
compared to the exponential BCDGs, with respect to colors,
compactness and luminosity-radius relations. We also include a brief
study of the
surroundings of the galaxies, where we find several candidate
companions.
Key words: galaxies: compact / galaxies: photometry / galaxies: starburst / galaxies: structure
© European Southern Observatory (ESO), 1999