Catalog of isolated galaxies selected from the 2MASS survey

被引:0
作者
V. E. Karachentseva
S. N. Mitronova
O. V. Melnyk
I. D. Karachentsev
机构
[1] Main Astronomical Observatory National Academy of Sciences,Special Astrophysical Observatory
[2] Russian Academy of Sciences,Institut d’Astrophysique et de Géophysique
[3] Université de Liège,Astronomical Observatory
[4] Taras Shevchenko Kiev National University,undefined
来源
Astrophysical Bulletin | 2010年 / 65卷
关键词
Radial Velocity; Astrophysical Bulletin; Angular Diameter; Apparent Magnitude; 2MASS Survey;
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摘要
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 = 12m with angular diameters aK ≥ 30″. 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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页码:1 / 17
页数:16
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