CCD and HI observations of LSB dwarf galaxies in the general field

¹ 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

Received: 26 July 1995
Accepted: 21 November 1995

Abstract

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.