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Matter and Electromagnetic Fields in Strong Gravity
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Matter and Electromagnetic Fields in Strong Gravity
CSIC Building (#406),
Seminar Room 4122.
Directions: home.cscamm.umd.edu/directions
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Modeling Flows Around Merging Black Hole Binaries
Joan Centrella
NASA Goddard Space Flight Center
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Abstract:
Coalescing massive black hole binaries are produced by the merger
of galaxies. The final stages of the black hole coalescence
produce strong gravitational radiation that can be detected by the
space-borne LISA. In cases in which the black hole merger takes
place in the presence of gas and magnetic fields, various types of
electromagnetic signals may also be produced. Modeling such
electromagnetic counterparts of the final merger requires evolving
the behavior of both gas and fields in the strong-field regions
around the black holes. We have taken a first step towards this
problem by mapping the flow of pressureless matter in the dynamic,
3-D general relativistic spacetime around the merging black holes.
We report on the results of these initial simulations and discuss
their likely importance for future hydrodynamical simulations.
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