Astrophysics Seminars

Nov
22
2011

Institute for Advanced Study Astrophysics Seminar

Galactic-Scale Star Formation Rates: An Efficient Market
Eve Ostriker
11:00am|Bloomberg Hall Astrophysics Library
ABSTRACT: Recent surveys have established increasingly precise correlations between star formation rates (SFRs) and the gas, stellar, and dark matter contents of galaxies. Outer galactic disks are dominated by atomic gas and have steep Kennicutt...
Nov
10
2011

Institute for Advanced Study Informal Astrophysics Seminar

A Physical Mechanism for Deflagration-to-Detonation Transitions (DDTs)
Doron Kushnir
11:00am|Bloomberg Hall Astrophysics Library
ABSTRACT: DDTs are observed in terrestrial combustion flows, and are inferred to occur in supernova explosions of type Ia. The physical mechanism responsible for DDT, in both chemical and nuclear combustion, is a long standing open question. We...
Nov
01
2011

Institute for Advanced Study Astrophysics Seminar

New Developments in Spiral Structure Theory
Jerry Sellwood
11:00am|Bloomberg Hall Astrophysics Library
Abstract: Over 150 years after their discovery, astronomers still lack a complete theory for the origin of the beautiful spiral patterns in disk galaxies. I will review the various ideas that have been proposed and describe some recent...
Oct
27
2011

Institute for Advanced Study Informal Astrophysics Seminar

The Phase-space Structure of Mono-abundance Sub-populations of the Milky Way Disk
Jo Bovy
11:00am|Bloomberg Hall Astrophysics Library
Observations of the structure and kinematics of different stellar populations in the Milky Way's disk provide a unique perspective on disk formation and evolution. I will discuss how current and future data sets that provide detailed kinematics and...