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How common is the Milky Way - satellite system alignment?
Monthly Notices of the Royal Astronomical Society, no. 2 (2009): 550-558
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The highly flattened distribution of satellite galaxies in the Milky Way (MW) presents a number of puzzles. First, its polar alignment stands out from the planar alignments commonly found in other galaxies. Secondly, recent proper-motion measurements reveal that the orbital angular momentum of at least three, and possibly as many as eight...更多
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