R. Coziol

TL;DR: In this paper, the authors conducted a new spectroscopic survey to characterize the nature of nuclear activity in Hickson Compact Groups (HCGs) galaxies and establish its frequency, and they found a large fraction of galaxies, 63%, with emission lines.

TL;DR: In this article, a computer algorithm was designed to identify contiguous emission regions, large and elongated enough to serve as GRG candidates, and applied it to the entire 1.4GHz NRAO VLA Sky survey (NVSS) image atlas.

TL;DR: In this paper, the authors conducted a new spectroscopic survey to characterize the nature of nuclear activity in Hickson compact group (HCG) galaxies and establish its frequency, and obtained new intermediate-resolution optical spectroscopy for 200 member galaxies and corrected for underlying stellar population contamination.

TL;DR: In this paper, the authors presented results of a search for giant radio galaxies (GRGs) with a projected largest linear size in excess of 1 Mpc, and designed a computational algorithm to identify contiguous emission regions, large and elongated enough to serve as GRG candidates.

TL;DR: In this article, the influence of environment on the formation and evolution of galaxies observed in the nearby universe was analyzed using both characteristic isophotal parameters and evidence of asymmetries in the optical and the near-infrared.