WALLABY Pilot Survey: H i gas kinematics of galaxy pairs in cluster environment

We examine the H i gas kinematics of galaxy pairs in two clusters and a group using Australian Square Kilometre Array Pathfinder (ASKAP) WALLABY pilot survey observations. We compare the H i properties of galaxy pair candidates in the Hydra I and Norma clusters, and the NGC 4636 group, with those of non-paired control galaxies selected in the same fields.

Citation:
Kim SJ, Oh SH, Wang J, Staveley-Smith L, Koribalski BS, ……. Elagali A. WALLABY Pilot Survey: H i gas kinematics of galaxy pairs in cluster environment. Mon Not R Astron Soc. 2023;519(1):318-39.

Keywords:
Galaxies: clusters: general; galaxies: evolution; galaxies: groups: general; galaxies: interactions; ISM: kinematics and dynamics

Abstract:
We examine the H i gas kinematics of galaxy pairs in two clusters and a group using Australian Square Kilometre Array Pathfinder (ASKAP) WALLABY pilot survey observations. We compare the H i properties of galaxy pair candidates in the Hydra I and Norma clusters, and the NGC 4636 group, with those of non-paired control galaxies selected in the same fields.