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arXiv · 1005.3191

Catalog of Isolated Galaxies Selected from the 2MASS Survey

V. E. Karachentseva·S. N. Mitronova·O. V. Melnyk·I. D. Karachentsev
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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.

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V. E. Karachentseva, S. N. Mitronova, O. V. Melnyk, I. D. Karachentsev. 2010-05-18. Catalog of Isolated Galaxies Selected from the 2MASS Survey. https://doi.org/10.1134/s1990341310010013

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