Structure Decomposition for the Luminous Disk Galaxies in the NGC 524
  Group
  Members of the NGC 524 group of galaxies are studied using data obtained on
the 6m telescope of the Special Astrophysical Observatory of the Russian
Academy of Sciences, with the SCORPIO reducer in an imaging mode. Surface
photometry has been carried out and parameters of the large-scale galactic
components - disks and bulges - have been determined for the six largest
galaxies of the group. A lower than expected percentage of bars and high
percentage of ring structures were found. Integrated B-V colours for a hundred
of dwarf galaxies in the vicinity (within 30 kpc) of the six largest galaxies
of the group have been measured. A considerable number of blue irregular
galaxies with ongoing star formation is found among dwarf satellites of the
lenticular galaxies of the group. The luminosity function for the dwarf
galaxies of the group suggests that the total mass of the group is not very
high, and that the X-ray emitting gas observed around NGC 524 relates to the
central galaxy and not to the group as a whole.
