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arxiv: 1201.1989 · v2 · pith:XX5PM3IUnew · submitted 2012-01-10 · 🌌 astro-ph.CO · astro-ph.GA

Andromeda and its satellites - a kinematic perspective

classification 🌌 astro-ph.CO astro-ph.GA
keywords andromedadiscmilkythoseanalysisandromeda-triangulumcomparisondata
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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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