Hostname: page-component-cd9895bd7-hc48f Total loading time: 0 Render date: 2024-12-25T17:32:45.871Z Has data issue: false hasContentIssue false
  • English
  • Français

The mass of dwarf spheroidal galaxies and the missing satellite problem

Published online by Cambridge University Press:  08 November 2005

J. I. Read ,
M. I. Wilkinson ,
N. Wyn Evans ,
G. Gilmore  and
Jan T. Kleyna
J. I. Read
Affiliation:
Institute of Astronomy, Cambridge University
M. I. Wilkinson
Affiliation:
Institute of Astronomy, Cambridge University
N. Wyn Evans
Affiliation:
Institute of Astronomy, Cambridge University
G. Gilmore
Affiliation:
Institute of Astronomy, Cambridge University
Jan T. Kleyna
Affiliation:
Institute for Astronomy, University of Hawaii
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We present the results from a suite of N-body simulations of the tidal stripping of two-component dwarf galaxies comprising some stars and dark matter. We show that recent kinematic data from the local group dwarf spheroidal (dSph) galaxies suggests that dSph galaxies must be sufficiently massive ($10^9$–$10^{10}$M$_\odot$) that tidal stripping is of little importance for the stars. We discuss the implications of these massive dSph galaxies for cosmology and galaxy formation.

Keywords

dwarfdark matterLocal Groupkinematics and dynamicsinteractions
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 1 , Colloquium C198: Near-Field Cosmology with Dwarf Elliptical Galaxies , March 2005 , pp. 235 - 239
Copyright
© 2005 International Astronomical Union