N. N

Prof. Béatrice Bonga (Radboud University): Non-linearities at black hole horizons. Oberseminar Topics in General Relativity

Tuesday, 30.01.2024 12:00 im Raum 503

Mathematik und Informatik

The gravitational waves emitted by a perturbed black hole ringing down are well described by damped sinusoids, whose frequencies are those of quasinormal modes. Typically, first-order black hole perturbation theory is used to calculate these frequencies. Recently, it was shown that second-order frequencies are necessary to model the gravitational-wave signal observed by a distant observer in binary black hole merger simulations. In this talk, I will show that the horizon of a newly formed black hole after the head-on collision of two black holes also shows evidence of non-linear modes.

Angelegt am 14.09.2023 von N. N
Geändert am 15.01.2024 von Anke Pietsch
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