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The University of Southampton
STAG Research Centre

Gravity seminar - Emanuele Berti [ONLINE SEMINAR AND UNUSUAL TIME: 14:00] Seminar

15 December 2022
Online Seminar

For more information regarding this seminar, please email Fabian Gittins at .

Event details

Title: Black hole spectroscopy: a status report

Abstract: According to general relativity, the remnant of a binary black hole merger should be a perturbed Kerr black hole. Perturbed Kerr black holes emit "ringdown" radiation which is well described by a superposition of quasinormal modes, with frequencies and damping times that depend only on the mass and spin of the remnant. The observation of gravitational radiation emitted by black hole mergers might finally provide direct evidence of black holes with the same certainty as, say, the 21 cm line identifies interstellar hydrogen. I will review the current status of this "black hole spectroscopy" program. I will focus on two important open issues: (1) Is the waveform well described by linear black hole perturbation theory? (2) What is the current observational status of black hole spectroscopy?

Speaker information

Emanuele Berti , John Hopkins University.

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