München 2006 – wissenschaftliches Programm
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GR: Gravitation und Relativitätstheorie
GR 101: Eigenschaften von klassischen Lösungen
GR 101.4: Vortrag
Montag, 20. März 2006, 15:20–15:40, K
The Extreme Distortion of Black Holes due to Matter — •Marcus Ansorg1 and David Petroff2 — 1Max Planck Institute for Gravitational Physics (Albert Einstein Institute), Am Muehlenberg 1, D-14476 Potsdam, Germany — 2Theoretisch-Physikalisches Institut, Friedrich-Schiller-Universitaet Jena, Max-Wien-Platz 1, D-07743 Jena
A highly accurate computer program is used to study axially symmetric and stationary spacetimes containing a Black Hole surrounded by a ring of matter. It is shown that the matter ring affects the properties of the Black Hole drastically. In particular, the absolute value of the ratio of the Black Hole’s angular momentum to the square of its mass not only exceeds one, but can be greater than ten thousand (∣J∣/M^2 > 10^4). Indeed, the numerical evidence suggests that this quantity is unbounded.