Hostname: page-component-cd9895bd7-dk4vv Total loading time: 0 Render date: 2024-12-25T17:05:29.166Z Has data issue: false hasContentIssue false
  • English
  • Français

Making compact elliptical satellite galaxies: a conceptual model for M32

Published online by Cambridge University Press:  08 November 2005

John S. Gallagher ,
Eva K. Grebel  and
Linda J. Smith
John S. Gallagher
Affiliation:
Dept. Astronomy, U. Wisconsin, 475 N. Charter St. Madison, WI 53760, USA email: [email protected]
Eva K. Grebel
Affiliation:
Astronomisches Institut, Venusstrasse 7, CH-4102, Binningen, Switzerland
Linda J. Smith
Affiliation:
Dept. Physics & Astronomy, Gower St., U. College London, London WC1E 6BT, UK
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.

M32 and other compact dwarf galaxies present interesting evolutionary puzzles. Why are most dwarf galaxies low density systems while a very few, like M32, have the highest stellar densities of any galaxies? We suggest that gas capture should be added to the tidal stirring mix as a way to make high density M32-type dwarfs starting with relatively ordinary satellite galaxies. This paper presents some of the basic features and issue associated with gas capture models.

Keywords

galaxies: dwarfgalaxies: evolutiongalaxies: individual (M32, NGC 1510)galaxies: structure
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 1 , Colloquium C198: Near-Field Cosmology with Dwarf Elliptical Galaxies , March 2005 , pp. 151 - 155
Copyright
© 2005 International Astronomical Union