Near-infrared structural properties of irregular dwarf galaxies in nearby galaxy groups

Abstract

The environmental effects on galaxy evolution have recently been disputed based on large SDSS galaxy samples. However, these effects are still expected to be strong for low-mass galaxies. We obtained deep near-infrared imaging of irregular dwarfs in CenA, M81 and Sculptor groups - spanning a range of galaxy density, - and we study the properties of these dwarfs, i.e. abundances, and structural parameters. Here we report a preliminary assessment of the structural parameters for these galaxies. © Springer-Verlag Berlin Heidelberg 2012.