Open AccessBroad‐band colours of Virgo cluster low surface brightness dwarf irregular galaxies
Author(s) -
Heller Ana B.,
Brosch Noah
Publication year - 2001
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1046/j.1365-8711.2001.04636.x
Subject(s) - physics , virgo cluster , surface brightness , astrophysics , photometry (optics) , surface brightness fluctuation , astronomy , dwarf galaxy , spiral galaxy , brightness , elliptical galaxy , dwarf galaxy problem , brightest cluster galaxy , galaxy , lenticular galaxy , stars
We present UBVRI images and surface photometry of a complete sample of 29 low‐luminosity dwarf irregular galaxies in the Virgo cluster, for which we derive central surface brightnesses, scalelengths, integrated magnitudes and median colours. The colour distributions are discussed in terms of radial surface brightness profiles, and colour gradients are interpreted and compared with corresponding ones for low surface‐brightness (LSB) spiral galaxies. By combining broad‐band and narrow‐band filter observations, the past and current influences of the cluster environment on the evolution of LSB dwarf irregular galaxies is evaluated.