Date:
Sun, 18/07/201012:30-13:30
Location:
Kaplun Bldg, seminar room, 2nd floor
The Local Group dSphs through the eyes of a dynamicist
Studying the dwarf spheroidal (dSphs) of the local group provides important constraints for small scale theories of galaxy formation and cosmology. However, a disconnect exists between the observational and theoretical communities: quantities that simulators provide are often
not observable. This is especially true with regard to testing the two largest discrepancies still facing LCDM on the small scale: the missing satellites problem and the cusp-core problem. I will discuss advancements in the front of dynamical modeling of the local group dSphs, and how these techniques not only help to bridge the gap between theory and simulation, but also allow us to make toy model predictions for the properties of future discoveries of dSphs. Lastly, given a newly derived mass estimator, I will demonstrate the interconnectedness of all dispersion-supported systems, ranging from dSphs to intracluster light.
Studying the dwarf spheroidal (dSphs) of the local group provides important constraints for small scale theories of galaxy formation and cosmology. However, a disconnect exists between the observational and theoretical communities: quantities that simulators provide are often
not observable. This is especially true with regard to testing the two largest discrepancies still facing LCDM on the small scale: the missing satellites problem and the cusp-core problem. I will discuss advancements in the front of dynamical modeling of the local group dSphs, and how these techniques not only help to bridge the gap between theory and simulation, but also allow us to make toy model predictions for the properties of future discoveries of dSphs. Lastly, given a newly derived mass estimator, I will demonstrate the interconnectedness of all dispersion-supported systems, ranging from dSphs to intracluster light.