Dwarf-spheroidal satellites: are they of tidal origin?
Astrophysics
2009-12-05 v1
Abstract
The Milky Way and Andromeda must have formed through an initial epoch of sub-structure merging. As a result of fundamental physical conservation laws tidal-dwarf galaxies (TDGs) have likely been produced. Here we show that such TDGs appear, after a Hubble-time of dynamical evolution in the host dark-matter halo, as objects that resemble known dSph satellite galaxies. We discuss the possibility that some of the Milky Way's satellites may be of tidal origin.
Keywords
Cite
@article{arxiv.astro-ph/0701289,
title = {Dwarf-spheroidal satellites: are they of tidal origin?},
author = {M. Metz and P. Kroupa},
journal= {arXiv preprint arXiv:astro-ph/0701289},
year = {2009}
}
Comments
7 pages, 3 figures; acc. for pub. in MNRAS