Galaxy disruption in a halo of dark matter |
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| Authors: | Forbes Duncan A Beasley Michael A Bekki Kenji Brodie Jean P Strader Jay |
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| Affiliation: | Centre for Astrophysics and Supercomputing, Swinburne University of Technology, Post Office Box 218, Hawthorn, VIC 3122, Australia. dforbes@swin.edu.au |
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| 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. |
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