University of Minnesota
School of Physics & Astronomy

Physics and Astronomy Calendar

Monday, September 22nd 2014
12:15 pm:
Speaker: Zhen Yuan, U Minnesota
Subject: Chemical Evolution Model of Fornax Dwarf Spheroidal Galaxy

Dwarf Spheroidals (dSphs) represent the building blocks of large galaxies according to the hierarchical structure of cold dark matter halos. Recent observation gives us the detailed star formation histories(SFH) of several nearby dSphs. Based on that, we reconstructed the gas dynamics as well as the chemical evolution history of Fornax dSph. Our empirical model considers the inhomogeneous mixing of Supernovae enrichment, which is the key to explain the scatter of alpha elements in these systems, such as [Mg/Fe], [Ca/Fe] and [Si/Fe] etc .

The weekly calendar is also available via subscription to the physics-announce mailing list, and by RSS feed.