The dwarf galaxy population in nearby clusters from the KIWICS survey

We analyse a sample of twelve galaxy clusters, from the Kapteyn IAC WEAVE INT Cluster Survey (KIWICS) looking for dwarf galaxy candidates. By using photometric data in the \(r\) and \(g\) bands from the Wide Field Camera (WFC) at the 2.5-m Isaac Newton telescope (INT), we select a sample of bright d...

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Bibliographic Details
Published in:arXiv.org 2021-08
Main Authors: Choque-Challapa, Nelvy, Aguerri, J Alfonso L, Mancera Piña, Pavel E, Reynier Peletier, Venhola, Aku, Verheijen, Marc
Format: Article
Language:English
Subjects:
Dwarf galaxies
Field cameras
Galactic clusters
Galaxy distribution
Halos
Spatial distribution
Stars & galaxies
Stellar color
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Summary:We analyse a sample of twelve galaxy clusters, from the Kapteyn IAC WEAVE INT Cluster Survey (KIWICS) looking for dwarf galaxy candidates. By using photometric data in the \(r\) and \(g\) bands from the Wide Field Camera (WFC) at the 2.5-m Isaac Newton telescope (INT), we select a sample of bright dwarf galaxies (M\(_r\) \(\leq\) -15.5 mag) in each cluster and analyse their spatial distribution, stellar colour, and as well as their Sérsic index and effective radius. We quantify the dwarf fraction inside the \(R_{200}\) radius of each cluster, which ranges from \(\sim\) 0.7 to \(\sim\) 0.9. Additionally, when comparing the fraction in the inner region with the outermost region of the clusters, we find that the fraction of dwarfs tends to increase going to the outer regions. We also study the clustercentric distance distribution of dwarf and giant galaxies (M\(_r\) \(
ISSN:2331-8422
DOI:10.48550/arxiv.2108.09610