2009/06/22 by L. Makarova, I. Karachentsev, L. Rizzi +2 · 1 citation
Physics and Astronomy · #Astronomy and Astrophysical Research #Brightness #Dwarf galaxy #Fundamental plane (elliptical galaxies) #Galaxies: Formation, Evolution, Phenomena #Galaxy #Irregular galaxy #Photometry (optics) #Scientific Research and Discoveries #Surface brightness #Surface brightness fluctuation #astro-ph.CO
paper · pdf · doi:10.1111/j.1365-2966.2009.15088.x
3 figures, accepted to the MNRAS
arxiv created 2009/06/22 · openalex publication_date 2009/07/10 · arxiv updated 2015/05/13 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
CCD photometry is presented for 20 dIrr galaxies situated in the nearby complexes CenA/M83, and CVnI as well as in the general field of the Local Volume. We present integrated magnitudes of the galaxies in B, V, I bands and also surface brightness profiles to a median isophote μB∼ 28 mag arcsec−2. The popular Sersic parametrization of surface brightness profiles generally does a poor job of simultaneously fitting the inner cores and outer exponential surface brightness fall-offs observed in many of our targets. The observed sample is a part of a general project to image about 500 nearby (D < 10 Mpc) dwarf galaxies in multiple bands.