Astrophysics Seminars

Apr
03
2008

Institute for Advanced Study Informal Astrophysics Seminar

From Massive Cores to Massive Stars
Mark Krumholz
11:30am|Bloomberg Hall Astrophysics Library
The similarity between the mass and spatial distributions of pre-stellar gas cores in star-forming clouds and young stars in clusters provides strong circumstantial evidence that these gas cores are the direct progenitors of individual stars. I...
Mar
13
2008

Institute for Advanced Study Informal Astrophysics Seminar

New Forms of Convection in Magnetized Plasmas
11:30am|Bloomberg Hall Astrophysics Library
In dilute plasmas, the electron mean free path is significantly larger than the electron Larmor radius. As a result, heat is transported primarily along (not across) magnetic field lines. The physics of buoyancy instabilities ("convection") is...
Mar
06
2008

Institute for Advanced Study Informal Astrophysics Seminar

Galaxy Cluster Mergers
11:30am|Bloomberg Hall Astrophysics Library
Galaxy cluster merger statistics are an important component in understanding the formation of large-scale structure. Recent studies suggest a merger bias, that mergers are more highly clustered than other objects of their mass. Cluster mergers are...
Feb
28
2008

Institute for Advanced Study Informal Astrophysics Seminar

Understanding Titan from the Perspective of Earth's Climate
11:30am|Bloomberg Hall Astrophysics Library
I will summarize our understanding of the climate of Titan based on observations, theory, and modeling. The nature of observed phenomena, such as summer-hemisphere methane clouds, the vertical profile of methane in the lower atmosphere, high...