Department of Physics & Astronomy

Fall 2008 Colloquia

 

Aaron Romanowsky

Aaron Romanowsky


University of California Observatories,
University of California, Santa Cruz
Galactic Fundamentals: Dark Matter and Dynamics
October 6, 2008 4PM, Thornton 411

The distributions of angular momentum and mass (including baryons and dark matter) are among the most fundamental properties of galaxies, and linked to their modes of formation and evolution. The largest reservoirs of these components should be in their halos, but particularly in the major class of elliptical galaxies, these are woefully unconstrained because of difficulties both in obtaining suitable observational tracers, and in dynamical modeling of the data. The situation is being remedied with new extensive wide-field surveys of galaxies in the nearby universe, using tracers such as globular clusters and planetary nebulae, from which I will present results.
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