Galaxy populations in the Hydra i cluster from the VEGAS survey

Authors :: Antonio La Marca
Reynier Peletier
Enrichetta Iodice
Maurizio Paolillo
Nelvy Choque Challapa
Aku Venhola
Duncan A. Forbes
Michele Cantiello
Michael Hilker
Marina Rejkuba
Magda Arnaboldi
Marilena Spavone
Giuseppe D’Ago
Maria Angela Raj
Rossella Ragusa
Marco Mirabile
Roberto Rampazzo
Chiara Spiniello
Steffen Mieske
Pietro Schipani
Kapteyn Astronomical Institute
Astronomy
Source :: Astronomy and astrophysics, 659:A92. EDP Sciences
Publication Year :: 2022
Abstract: At ~50 Mpc, the Hydra I cluster of galaxies is among the closest cluster in the z=0 Universe, and an ideal environment to study dwarf galaxy properties in a cluster environment. We exploit deep imaging data of the Hydra I cluster to construct a new photometric catalog of dwarf galaxies in the cluster core, which is then used to derive properties of the Hydra I cluster dwarf galaxies population as well as to compare with other clusters. Moreover, we investigate the dependency of dwarf galaxy properties on their surrounding environment. The new Hydra I dwarf catalog contains 317 galaxies with luminosity between -18.5<br />Comment: Accepted for publication in A&A. 25 pages, 21 figures