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COMPUTATIONAL RELATIVISTIC ASTROPHYSICS
Note: The public lectures in this column are free and do not require registration
Public Lecture Series:
Sackler Lecture in Astrophysics:
Roger Blandford
Kavli Institute for Particle Astrophysics and Cosmology
Stanford University
Thursday, April 22, 2009
8:00 PM, McDonnell A02

 


Computational Relativistic Astrophysics: 20092010
Organizers: Adam Burrows, Frans Pretorius, Anatoly Spitkovsky, Branson Stephens, Jim Stone
Cosponsored by The D. E. Shaw Group.
Relativistic Astrophysics is experiencing an explosion in the quality of data and the level of sophistication of the modeling. Broadly defined, relativistic astrophysics studies phenomena for which the effects of Einstein's theory of relativity play a crucial role in determining the observables. Examples include relativistic motion of astrophysical jets, accretion onto black holes, formation and mergers of neutron stars and black holes, supernova explosions, and the acceleration of cosmic rays. For the next several years we expect a unique confluence of simultaneous observations from ground and spacebased telescopes that span the whole electromagnetic spectrum: VLA (radio), Hubble/JWST (optical/infrared), Chandra, XMM, SWIFT, NuStar (Xrays), GLAST (gammarays), and HESS/MAGIC (multiTeV gammarays). These facilities will be combined with the qualitatively new windows provided by particle astronomy via cosmic rays (Auger) and neutrinos (IceCube), and gravitational wave astronomy with LIGO.
Theoretical understanding of the extreme environments of relativistic astrophysics is challenging due to the difficulties of modeling the nonlinear physical processes involved. Only recently, robust algorithms for relativistic magnetohydrodynamcs (RMHD) and for the solution of the Einstein equations have been developed and applied to astrophysics.
The goal of this program is to further the development and use of advanced numerical techniques for problems where both strong gravity and MHD are important, where strong magnetic fields determine the evolution, and where the models of relativistic microphysics are uncertain.
April 2223:
"Computational Relativistic Astrophysics"
Roger Blandford, Kavli Institute for Particle Astrophysics
Sackler Lectures in Astrophysics
PROGRAM
POSTER
January 1316:
"Computational Relativistic Astrophysics: Frontiers of MHD"
A tentative outline is:
• January 1314: Compact object magnetospheres, forcefree MHD
• January 1415: Relativistic MHD, Formation and acceleration of relativistic jets, physics of accretion.
• January 16: Nonideal effects, radiation MHD, kinetic and hybrid approaches.
POSTER
PROGRAM
SLIDES from the January meeting
October 2224: (ThursdaySaturday)
"Computational General Relativistic Astrophysics"
A tentative outline is: Thursday, October 22: Overview of gravitational wave astronomy and gravitational wave detectors, binary black hole mergers Friday, October 23: Binary neutron star and black hole/neutron star mergers Saturday, October 24: Accretion disks, collapsars, jets, and supernovae.
POSTER
PROGRAM 