Astrophysics Seminars

Jan
23
2014

Institute for Advanced Study Informal Astrophysics Seminar

Three Pieces in the Form of a Ring
Jihad Touma
11:00am|Bloomberg Hall, Astrophysics Library

ABSTRACT: I review progress on formally interrelated problems of current astrophysical import: a-The thermodynamics and dynamics of stellar clusters around super-massive black holes; b-The dynamics of multi-planet systems in binaries.

Jan
21
2014

Institute for Advanced Study Astrophysics Seminar

Gaps in Galactic Stellar Streams
Raymond Carlberg
11:00am|Bloomberg Hall Astrophysics Library
ABSTRACT: The LCDM paradigm predicts that the Milky Way dark halo has nearly 10% of its mass in the form of thousands of sub-halos, far more than can be accounted for with the known dwarf galaxies. Globular clusters dissolving in the tidal field of...
Jan
14
2014

Institute for Advanced Study Astrophysics Seminar

Solar Chemical Anomalies and Late Accretion
Wick Haxton
11:00am|Bloomberg Hall Astrophysics Library
ABSTRACT: One of the last problems that John Bahcall considered was the solar abundance problem, the conflict between helioseismology, which indicates a high-metallicity solar core, and improved analyses of photospheric absorption lines, which favor...
Nov
26
2013

Institute for Advanced Study Astrophysics Seminar

Science Horizons & Technology Challenges in X-ray Astronomy Beyond Chandra
Alexey Vikhlinin
11:00am|Bloomberg Hall Astrophysics Library

ABSTRACT: A successor to Chandra X-ray observatory will need to at least maintain its excellent angular resolution while massively expanding the throughput. I will discuss a concept and enabling technologies for such a mission, SMART-X, which would...