Dwarf early-type galaxies in the Coma cluster: internal dynamics, stellar populations
Astrophysics of Galaxies
2023-06-16 v1
Abstract
We present preliminary results from our spectroscopic survey of low-luminosity early-type galaxies in the Coma cluster conducted with the Binospec spectrograph at the 6.5~m MMT. From spatially-resolved profiles of internal kinematics and stellar population properties complemented with high-resolution images, we placed several low-luminosity dEs on the fundamental plane in the low-luminosity extension of the available literature data. We also discovered unusual kpc-sized kinematically-decoupled cores in several dwarf galaxies, which had been probably formed before these galaxies entered the cluster.
Keywords
Cite
@article{arxiv.2306.08048,
title = {Dwarf early-type galaxies in the Coma cluster: internal dynamics, stellar populations},
author = {Igor Chilingarian and Kirill Grishin and Anton V. Afanasiev and Anton Mironov and Daniel Fabricant and Sean Moran and Nelson Caldwell and Ivan Katkov and Irina Ershova},
journal= {arXiv preprint arXiv:2306.08048},
year = {2023}
}
Comments
accepted to the proceedings of IAU Symposium 379 (Dynamical Masses of Local Group Galaxies), 4 pages, 2 figures