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96509D76-A6B8-439E-B1A7-C0A4876433A6

New Analysis of Dark Matter in Elliptical Galaxies

David Winters, Alexandre Deur, Xiaochao Zheng
arXiv:2207.02945

Submitted on 6 July 2022

Abstract

We investigate a correlation between the dark matter content of elliptical galaxies and their ellipticity that was initially reported in 2014. We use new determinations of dark matter and ellipticities that are posterior to that time. Our data set consists of 237 elliptical galaxies passing a strict set of criteria. We find a relation between the mass-to-light ratio and ellipticity that is well fit by M/L = (14.1 \pm 5.4)?, which agrees with the result reported in 2014.

Preprint

Subjects: Astrophysics - Astrophysics of Galaxies; Astrophysics - Cosmology and Nongalactic Astrophysics

URL: https://arxiv.org/abs/2207.02945