Catalog of Isolated Galaxies Selected from the 2MASS Survey
Abstract
We search for isolated galaxies based on the automatic identification of isolated sources from the Two Micron All-Sky Survey (2MASS) followed by a visual inspection of their surroundings. We use the modified Karachentseva criterion to compile a catalog of 3227 isolated galaxies (2MIG), which contains 6% of 2MASS Extended Sources Catalog (or 2MASX) sources brighter than Ks = 12 mag with angular diameters a_K > 30 arcsec. The catalog covers the entire sky and has an effective depth of z = 0.02. The 2493 very isolated objects of the catalog, which we include into the 2MVIG catalog, can be used as a reference sample to investigate the effects of the environment on the structure and evolution of galaxies located in regions with extremely low density of matter.
Keywords
Cite
@article{arxiv.1005.3191,
title = {Catalog of Isolated Galaxies Selected from the 2MASS Survey},
author = {V. E. Karachentseva and S. N. Mitronova and O. V. Melnyk and I. D. Karachentsev},
journal= {arXiv preprint arXiv:1005.3191},
year = {2010}
}
Comments
19 pages, 13 figures