Statistics – Computation
Scientific paper
Dec 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...21112002m&link_type=abstract
American Astronomical Society, AAS Meeting #211, #120.02; Bulletin of the American Astronomical Society, Vol. 39, p.949
Statistics
Computation
Scientific paper
We present simulations of the inspiral, merger and eventual collapse of neutron star binaries calculated in full general relativity. The Einstein equations are solved in a first order reduction of the general harmonic formulation while the matter is evolved with a relativistic MHD code though magnetic fields are absent in the simulations presented here. We use the adaptive mesh refinement package HAD to resolve the disparate length scales in the problem ranging from the radiation zone down to the internal dynamics of the neutron stars. We will briefly highlight our results for the gravitational radiation waveform as well as the evolution of angular momentum in the rotationally-supported, merged object that eventually collapses.
This work has been supported in part by NSF grants AST 04-07070 and PHY 03-26311, and in part through NASA's ATP program grants NAG5-8497, NAG5-13430 and NNX07AG84G. The computations were performed on Pelican which is supported by LSU's High Performance Computing group, Marylou4 at BYU and with Teragrid resources.
Anderson Malcolm
Hirschman E. W.
Lehner Luis
Liebling Steven L.
Motl Patrick M.
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