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SUMMARY:The Galactic Halo Renaissance - Alis Deason (Durham)
DTSTART:20191128T160000Z
DTEND:20191128T170000Z
UID:TALK131479@talks.cam.ac.uk
CONTACT:Dominic Walton
DESCRIPTION:We are currently witnessing a golden age in Galactic halo scie
 nce. Largely thanks to the Gaia mission\, we now have phase-space plus che
 mical information for significant numbers of halo stars\, globular cluster
 s and satellite dwarf galaxies in the Milky Way. These halo populations ca
 n be used to uncover the assembly history of the Galaxy\, probe the nature
  of dark matter\, and scrutinise cosmological models. In this talk I will 
 describe recent efforts to address these fundamental questions using a com
 bination of new observational data and state-of-the-art cosmological simul
 ations. In particular\, I will discuss the total mass and mass profile of 
 the Milky Way\, the last major accretion event that shaped the Galaxy's hi
 story\, and the (surviving and destroyed) dwarf satellite luminosity funct
 ion.
LOCATION:Sackler Lecture Theatre\, IoA (tea at 3:30 pm)
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