Gas rich galaxies from the FIGGS survey
arXiv:0711.2153 · doi:10.1007/978-1-4020-6933-8_13
Abstract
The FIGGS (Faint Irregular Galaxy GMRT Survey) is aimed at creating a multi-wavelength observational data base for a volume limited sample of the faintest gas rich galaxies. In this paper we discuss two very gas rich galaxies that were observed as part of the FIGGS survey, viz. NGC 3741 and And IV. These galaxies are unusual in that they have extremely extended gas disks and very high ratios of dark to luminous matter. The very extended HI disks provide an unique opportunity to trace the extended distribution of dark matter around faint galaxies. We compare the baryon fraction of these galaxies with a sample of galaxies with well measured rotation curves and discuss whether extremely gas rich dwarf galaxies have abnormally small baryon fractions.
5 Pages, 4 Figures. To be published in the proceedings of "Galaxies in the Local Volume", ed. B. Koribalski, H. Jerjen
References in corpus (6)
- NGC 3741: dark halo profile from the most extended rotation curve
- Gas distribution, kinematics and star formation in faint dwarf galaxies
- A dwarf galaxy with a giant HI disk
- ESO215-G?009: An Extreme HI-Rich Dwarf Irregular Galaxy
- Kinematics of two dwarf galaxies in the NGC 6946 group
- Gas rich galaxies from the FIGGS survey