2008/07/09 by С. Н. Митронова, S. N. Mitronova, I. D. Karachentsev +8
Engineering · Environmental Science · Physics and Astronomy · #Astrophysics (astro-ph) #CCD and CMOS Imaging Sensors #FOS: Physical sciences #Galaxies: Formation, Evolution, Phenomena #Impact of Light on Environment and Health #astro-ph
paper · pdf · doi:10.48550/arxiv.0807.1398
4 pages, 2 figures, from Proceedings of the conference "Problems of Practical Cosmology", St.Petersburg, Russia, 23-29 June 2008
arxiv created 2008/07/09 · openalex publication_date 2008/07/09 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We present a first entire-sky catalog of isolated galaxies obtained via systematic automated and visual inspections of extended sources from the Two Micron All-Sky Survey (2MASS). Based on the Karachentseva's (1973) isolation criteria, we have extracted a sample of 2100 2MIG galaxies consisting a 4% fraction among galaxies brighter than K = 12m. Being the objects with probably no major perturbations in some last billion years, the 2MIG galaxies may be considered as a reference sample to study environment effects in galaxy structure and evolution. The 2MIG catalog may also be useful to explore the existence of dark galaxy population within a volume of z=0.02.