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arXiv · 1201.1989

Andromeda and its satellites - a kinematic perspective

Michelle L. M. Collins·R. Michael Rich·Scott C. Chapman
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Abstract

Using spectroscopic data taken with Keck II DEIMOS by the Z-PAndAS team in the Andromeda-Triangulum region, I present a comparison of the disc and satellite systems of Andromeda with those of our own Galaxy. I discuss the observed discrepancies between the masses and scale radii of Andromeda dwarf spheroidal galaxies of a given luminosity with those of the Milky Way. I also also present an analysis of the newly discovered M31 thick disc, which is measured to be hotter, more extended and thicker than that seen in the Milky Way.

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Michelle L. M. Collins, R. Michael Rich, Scott C. Chapman. 2012-01-16. Andromeda and its satellites - a kinematic perspective. https://arxiv.org/abs/1201.1989

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