|Speaker:||Puragra Guhathakurta (UC Santa Cruz)|
|Title:||The Andromeda Galaxy: Hierarchical Galaxy Formation, Stellar Populations, and the Interstellar Medium|
|Date (JST):||Thu, Jun 27, 2013, 16:00 - 17:00|
|Place:||Seminar Room A|
The Andromeda galaxy (M31) is effectively three laboratories rolled into one.
First, it offers us a close-up view of hiearchical galaxy formation. Second, having a large group of stars, all at roughly the same distance from us, is ideal for stellar population studies. Third, some of this starlight shines through interstellar dust and gas.
I will present the latest results from the decade-long SPLASH (Spectroscopic and Photometric Landscape of Andromeda's Stellar Halo) survey. Topics will include: dwarf satellite galaxies, a recent merger event, the ensemble of accreted satellites, chemical abundance patterns, stellar "thermometry", and ionized gas kinematics.