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[6.5]Gravitational waves from extreme mass ratio inspirals
文章来源:  |  发布时间:2018-06-01  |  浏览:

                                        Seminar

 

Title: Gravitational waves from extreme mass ratio inspirals

Speaker: Dr. Jiang Long (龙江)(Universite Libre de Bruxelles)

 

Time: 3:00PM, June 5th, 2018 (Tuesday)

 

Place: Theoretical Physics Division, 319

 

Abstract: We analytically compute time domain gravitational waveforms
produced in the final stages of extreme mass ratio inspirals of
non-spinning compact objects into supermassive nearly extremal Kerr
black holes. The resulting gravitational waveforms consist of an
intermediate polynomial ringdown phase followed by an exponential
quasi-normal mode decay. The waveform amplitude exhibits critical
behavior when the orbital angular momentum tends to a minimal value
determined by the innermost stable circular orbit. We show that either
near-critical or large angular momentum leads to a significant
extension of gravitational wave observation.

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