Affordable Access

Galaxy disruption in a halo of dark matter.

Authors
Type
Published Article
Journal
Science
1095-9203
Publisher
American Association for the Advancement of Science (AAAS)
Publication Date
Volume
301
Issue
5637
Pages
1217–1219
Identifiers
PMID: 12907809
Source
Medline
License
Unknown

Abstract

The relics of disrupted satellite galaxies have been found around the Milky Way and Andromeda, but direct evidence of a satellite galaxy in the early stages of disruption has remained elusive. We have discovered a dwarf satellite galaxy in the process of being torn apart by gravitational tidal forces as it merges with a larger galaxy's dark matter halo. Our results illustrate the morphological transformation of dwarf galaxies by tidal interaction and the continued buildup of galaxy halos.

Statistics

Seen <100 times