Sohn, Jubee, Geller, Margaret J., Hwang, Ho Seong, Zahid, H. Jabran, and Lee, Myung Gyoon. 2016. "Catalogs of Compact Groups of Galaxies from the Enhanced SDSS DR12." The Astrophysical Journal Supplement Series 225:23. https://doi.org/10.3847/0067-0049/225/2/23
We apply a friends-of-friends algorithm to an enhanced SDSS DR12 spectroscopic catalog, including redshift from the literature to construct a catalog of 1588 N=slant 3 compact groups of galaxies containing 5178 member galaxies and covering the redshift range 0.01 -1 show abundant evidence for ongoing dynamical interactions among the members. The number density of the volume-limited catalogs agrees with previous catalogs at the lowest redshifts but decreases as the redshift increases. The SDSS fiber placement constraints limit the catalog’s completeness. In spite of this issue, the volume-limited catalogs provide a promising basis for detailed spatially resolved probes of the impact of galaxy-galaxy interactions within similar dense systems over a broad redshift range.