Ginzburg Conference on Physics May 28 - June 2, 2012 in Moscow
Ginzburg Conference on Physics May 28 - June 2, 2012 in Moscow
Ginzburg Conference on Physics May 28 - June 2, 2012 in Moscow
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Gravitati<strong>on</strong>al perturbati<strong>on</strong>s of a black holebehave like an oscillator with damp<strong>in</strong>gg exp( it), i, 1 2 1 2M f ( J / M ), M F( J / M ).An excited black relaxes to its `ground'stati<strong>on</strong>ary state by emitt<strong>in</strong>g gravitati<strong>on</strong>al waves.They `br<strong>in</strong>g' us <strong>in</strong>formati<strong>on</strong> about M and J.