Galaxy populations in the Hydra I cluster from the VEGAS survey I. Optical properties of a large sample of dwarf galaxies

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 cluste...

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Bibliographic Details
Published in:arXiv.org 2021-12
Main Authors: Antonio La Marca, Reynier Peletier, Iodice, Enrichetta, Paolillo, Maurizio, Nelvy Choque Challapa, Venhola, Aku, bes, Duncan A, Cantiello, Michele, Hilker, Michael, Rejkuba, Marina, Arnaboldi, Magda, Spavone, Marilena, D'Ago, Giuseppe, Raj, Maria Angela, Ragusa, Rossella, Mirabile, Marco, Rampazzo, Roberto, Spiniello, Chiara, Mieske, Steffen, Schipani, Pietro
Format: Article
Language:English
Subjects:
Dwarf galaxies
Galactic clusters
Galaxy distribution
Luminosity
Optical properties
Spatial distribution
Stars & galaxies
Surface brightness
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Summary: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
ISSN:2331-8422
DOI:10.48550/arxiv.2112.00711