Strong Gravity News & Events

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Magnetized accretion onto inspiraling binary black holes

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Speaker
Bruno Mundim (AEI, Potsdam)
Event date
Venue
GAP room
Event type

Abstract: Fully general relativistic numerical solutions to magnetized accretion onto black hole binaries are computationally very expensive. Current efforts are limited to very short binary separations. On the other extreme, however, point-particle Newtonian mechanics is used to accurately model accretion onto binaries with very large separations.

Black holes with nonspherical horizon topology in higher-dimensions: a numerical approach

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Speaker
Eugen Radu (Oldenburg U.)
Event date
Venue
GAP room
Event type

Abstract: We present numerical evidence for the existence of several types of new black hole solutions with a nonspherical event horizon topology in d>5 spacetime dimensions. These asymptotically flat configurations are found for specific metric Ansatze by directly solving the Einstein equations with suitable boundary conditions.

Enhanced AdS Horizons

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Speaker
Jai Grover
Event date
Venue
GAP room
Event type

Abstract: We shall be investigating whether there is near-horizon supersymmetry enhancement in supersymmetric black hole solutions to minimal gauged supergravity in five dimensions; as all known black holes of the gauged theory exhibit supersymmetry enhancement from $1/4$ to $1/2$ in the near hori