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Caltech

Astronomy Tea Talk

Monday, May 19, 2014
4:15pm to 5:00pm
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Cahill, Hameetman Auditorium
Lessons in Near-Field Cosmology from Simulating the Local Group
Shea Garrison-Kimmel, UC Irvine,
  Studies of the Milky Way (MW) and Andromeda (M31) galaxies, along with their associated satellites and nearby dwarf galaxies, have proven immensely useful for constraining the cosmology of the Universe, particularly on small scales. I will present a number of simulations, many of which are a part of the ELVIS Suite, cosmological zoom-in simulations of Local Group-like volumes of MW/M31 pairs. Using these, and other simulations, I will highlight existing tensions within the LCDM paradigm, as well as illustrate how simulations can provide links between near-field and deep-field observations.
For more information, please contact Luca Ricci and Dan Perley by phone at 626-395-2460 and 626-395-3734 or by email at lricci@astro.caltech.edu and dperley@astro.caltech.edu.