Astrophysics Seminars

Feb
09
2010

Institute for Advanced Study Astrophysics Seminar

Peaks and Pitfalls in Large Scale Structure
Ravi Sheth
11:00am|Bloomberg Hall Astrophysics Library
The idea that peaks in the initial density fluctuation field may be important at later times has been a sort of guiding principle in most models of hierarchical structure formation for about three decades. I will discuss whether the qualitative...
Feb
02
2010

Institute for Advanced Study Astrophysics Seminar

The Status of Cosmic Ray Anomalies and Dark Matter Interpretations
11:00am|Bloomberg Hall Astrophysics Library
Data from cosmic ray experiments have suggested the need for new, primary sources of cosmic rays. I will review the status of the anomalies and some of the models to explain them, including those models with dark forces. We'll discuss the near-term...
Jan
21
2010

Institute for Advanced Study Informal Astrophysics Seminar

Exo-Cartography: Time-Resolved Photometry of Exoplanets
Nick Cowan
11:30am|Bloomberg Hall Astrophysics Library
The first potentially habitable exoplanets will likely be discovered in the next two years, but they will be much fainter than their host stars, so these worlds will at first be studied indirectly. Fortunately, the existence of short-period giant...
Jan
19
2010

Institute for Advanced Study Informal Astrophysics Seminar - DIFFERENT DAY

Planetary Systems, Turbulence and Saturn's Rings
11:30am|Bloomberg Hall Astrophysics Library
The discovery of more than 400 extrasolar planets keeps challenging the theory of planet formation. Multi-planetary systems are of particular interest. Their orbital parameters allow us to constrain properties of the otherwise unobservable formation...
Jan
12
2010

Institute for Advanced Study Informal Astrophysics Seminar - DIFFERENT DAY

Testing AGN Evolution Models Through the Comparison of Semi-Analytic Simulations and a Large Observational Data Set
Amy Kimball
11:30am|Bloomberg Hall Astrophysics Library
Quasars and radio galaxies display great morphological variety that correlates with other properties such as spectral slope and luminosity. The unification theory for radio-loud active galactic nuclei (AGNs) attempts to explain much of this...
Dec
10
2009

Institute for Advanced Study Informal Astrophysics Seminar

Cosmology and Astrophysics with Galaxy Clusters
Daisuke Nagai
11:30am|Bloomberg Hall Astrophysics Library
Clusters of galaxies are unique and powerful probes of cosmology and astrophysics, promising to provide new insights into the nature of dark energy and dark matter to the physics of galaxy formation. The study of galaxy clusters combines the...