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Astronomy Colloquium
"Toward the Formation of Realistic Disk Galaxies".
Date: Thursday, January 27th
Time: 3:30 pm
Place: 4421 Sterling Hall
Speaker: Alyson Brooks, CALTECH
Abstract: Much progress has been made in recent years in forming realistic disk galaxies in fully cosmological simulations. I will highlight the necessity of both 1) a physically motivated prescription for star formation and feedback and 2) very high numerical resolution to achieve a successful model for the formation of disk galaxies<br>
(including bulgeless dwarf disk galaxies). The resulting simulated galaxies simultaneously match observed disk scaling relations (stellar mass -- metallicity, size -- luminosity, size -- velocity, and velocity -- luminosity) for the first time. Realistic simulated galaxies are the necessary starting point for interpreting observations in light of galaxy formation theory. Hence, I will conclude by highlighting the science enabled by these state-of-the-art simulations.
Host: Astronomy Department
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