The low surface brightness members of nearby groups

Details The low surface brightness members of nearby groups The low surface brightness members of nearby groups

2000-10-13

arxiv.org/abs/astro-ph/0010266v1

Astronomy and Astrophysics

Astrophysics

Latex, 7 pages, 3 figures, iap2000.sty and psfig.sty. To appear in the Proceedings of the IAP2000 conference "Constructing the

Scientific paper

We are undertaking a large, wide-field survey of nearby groups and poor clusters. The main goals are identifying and characterizing the properties of low-surface-brightness dwarf galaxies and determining the galaxy luminosity function for M$_R > -17$. Large areas (typically 0.3--0.5 degree$^2$ per system but up to 7 degree$^2$) of the groups Telescopium, Leo I, Dorado, N5575, HCG 42, HCG 44, HCG 68 and the poor clusters IC 4765 and Hydra have so far been surveyed in V and I. We present the preliminary results for the photometric study of the groups HCG 42, Telescopium (or NGC6868) and IC4765. Hundreds of new low surface brightness galaxies are catalogued. Their spatial distributions, colors, types and sizes will be studied as a function of the richness of their environments.

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