Catálogo de grupos difusos de galaxias identificados en el relevamiento 2M++

Abstract

We provide the galaxy group sample used as tracers of the large scale structure in the work to study the compact group environment. It comprises 813 galaxy groups identified in the 2M++ catalogue with a FoF algorithm with an overdensity contrast of 433, and having virial masses greater than 10^12^ solar masses, and four or more galaxy members. There are 4869 galaxy group members with K_2M++ apparent magnitude brighter than 12.5.