A vast, thin plane of corotating dwarf galaxies orbiting the Andromeda galaxy
Ibata, Rodrigo A; Lewis, Geraint Francis; Conn, Anthony R; Irwin, M. J.; McConnachie, Alan W; Chapman, Scott C.; Collins, Michelle L.; Fardal, Mark; Ferguson, A. M. N.; Ibata, Neil G.; Mackey, Alasdair
Dwarf satellite galaxies are thought to be the remnants of the population of primordial structures that coalesced to form giant galaxies like the Milky Way. It has previously been suspected that dwarf galaxies may not be isotropically distributed around our Galaxy, because several are correlated with streams of Hi emission, and may form coplanar groups. These suspicions are supported by recent analyses. It has been claimed that the apparently planar distribution of satellites is not predicted...[Show more]
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