Faint dwarf galaxies in nearby clusters

TL;DR

This paper compares the structural properties of faint dwarf galaxies in distant galaxy clusters Hydra I and Centaurus to similar systems in the Local Group and nearby clusters, expanding understanding of low-mass stellar systems.

Contribution

It provides a comparative analysis of faint dwarf galaxies across multiple galaxy clusters, including more distant ones, which was previously limited to nearby systems.

Findings

Structural parameters of dwarf galaxies in Hydra I and Centaurus are characterized.

Comparison reveals similarities and differences with Local Group dwarf systems.

Expands knowledge of faint dwarf galaxy properties in diverse cluster environments.

Abstract

Besides giant elliptical galaxies, a number of low-mass stellar systems inhabit the cores of galaxy clusters, such as dwarf elliptical galaxies (dEs/dSphs), ultra-compact dwarf galaxies (UCDs), and globular clusters. The detailed morphological examination of faint dwarf galaxies has, until recently, been limited to the Local Group (LG) and the two very nearby galaxy clusters Virgo and Fornax. Here, we compare the structural parameters of a large number of dEs/dSphs in the more distant clusters Hydra I and Centaurus to other dynamically hot stellar systems.