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Abstracts Astronomy & Space Science
by Christopher White
| Institution: | Princeton University |
|---|---|
| Year: | 2016 |
| Keywords: | accretion; black hole; general relativity; magnetohydrodynamics; simulation |
| Posted: | 02/05/2017 |
| Record ID: | 2132291 |
| Full text PDF: | http://arks.princeton.edu/ark:/88435/dsp01n296x160r |
Abstract
We describe the implementation of sophisticated numerical techniques for general-relativistic magnetohydrodynamics simulations in the Athena++ code framework. Improvements over many existing codes include the use of advanced Riemann solvers and of staggered-mesh constrained transport. Combined with considerations for computational performance and parallel scalability, these allow us to investigate black hole accretion flows with unprecedented accuracy. The capability of the code is demonstrated by exploring magnetically arrested disks. Advisors/Committee Members: Stone, James M (advisor).
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