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Could M31 be the result of a major merger?

We investigated a scenario in which M31 could be the remnant of a gas-rich major merger. Galaxy merger simulations, highly constrained by observations, were run using GADGET 2 in order to reproduce M31. We succeeded in reproducing the global shape of M31, the thin disk and the bulge, and in addition some of the main M31 large-scale features, such as the thick disk, the 10kpc ring and the Giant Stream. This lead to a new explanation of the Giant Stream which could be caused by tidal tail stars that have been captured by the galaxy potential.

preprint2011arXivOpen access
Sylvain FouquetFrançois HammerYang-Bin YangJianling WangMathieu PuechHector Flores
astro-ph.CO
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Open access6 authors1 topic
Imported metadata coverageMissing code, dataset, citation and institution fields are tracked without dominating the paper.Details
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Sylvain FouquetFrançois HammerYang-Bin YangJianling WangMathieu PuechHector Flores

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