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Dance of the Milky Way and the LMC

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If you have a question about this talk, please contact Martin Haehnelt.

The LMC is the largest satellite of our Galaxy and has a total mass roughly 1/6th that of the Milky Way. In this talk, I will review the multiple lines of evidence for the LMC being so massive and then focus on the substantial effect it has on our Galaxy. In particular, I will discuss its effect on many of the stellar streams around the Milky Way which have been perturbed by the LMC . I will then discuss the stellar halo and show that the outskirts of the Milky Way, beyond ~30 kpc, are significantly out of dynamical equilibrium due to the acceleration of the Milky Way by the LMC . I will end with some preliminary predictions of how the dark matter haloes of the Milky Way and LMC are tidally deforming in the presence of each other and how we can hope to measure this effect in the coming years using tidal streams.

This talk is part of the Institute of Astronomy Galaxies Discussion Group series.

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