CCD and HI observations of LSB dwarf galaxies in the general field
Astronomical Observatory of Kiev University, Kiev, Ukraine
2 Observatoire de Haute Provence, France
3 Tartu Observatory, EE2444 Tartu, Estonia
4 Astrophysical Institute Potsdam, An der Sternwarte 16, D-14482 Potsdam- Babelsberg, Germany
5 Astronomy Department, University of Virginia, Charlottesville,VA 22903, U.S.A.
6 ARPEGES, Place Jules Janssen, F-92195, Meudon Cedex, France
Send offprint request to: G.M. Richter
Accepted: 21 November 1995
CCD B and V observations of 16 low-surface-brightness galaxies and HI data for a subsample of 4 of them are presented. Both paired and isolated dwarf galaxies are observed to study possible environmental effects on their characteristics. Most of the observed galaxies are true dwarfs with -8.0 -16.0, blue colours (0.16 0.76) and low central surface brightnesses 22.2 24.0 mag arcsec-2. Most of them show exponential light profiles with a central light depression. About half of them have bright generally blue knots or peculiar loops.
Key words: dwarf galaxies: surface photometry, HI observations
© European Southern Observatory (ESO), 1996