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GR: Fachverband Gravitation und Relativitätstheorie

GR 4: Gravitational waves II

GR 4.1: Vortrag

Dienstag, 20. März 2018, 16:30–16:50, Phys-SR-SE1

Waveform modeling for gravitational wave astronomy — •Harald Pfeiffer — Max Planck Institute for Gravitational Physics (Albert Einstein Institute)

The past two years have witnessed the advent of gravitational wave (GW) astronomy led by the spectacular observations of binary black holes and binary neutron stars by the LIGO and Virgo detectors. GW astronomy relies on knowledge of the gravitational waveforms for a variety of tasks: To design search strategies to detect gravitational waves; to measure masses, spins and tidal parameters of the coalescing compact objects; and also to test general relativity and to search for signatures of physics beyond classical general relativity.

This talk elucidates the interplay between GW astronomy and waveform modeling. We will present new waveform models, and will discuss validation studies to ensure that the recent GW observations are not biased by waveform model deficiencies. Particular emphasis will be paid to numerical relativity simulations, the only means to compute the gravitational waves emitted during the genuinely nonlinear and dynamic late inspiral and merger phase of compact object binaries.