Hamburg 2016 – scientific programme

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GR: Fachverband Gravitation und Relativitätstheorie

GR 16: Gravitational Waves

GR 16.2: Talk

Friday, March 4, 2016, 09:05–09:25, VMP6 HS A

Analytic models for compact binaries — •Jan Steinhoff — Max Planck Institute for Gravitational Physics (Albert Einstein Institute)

Compact binaries are the most promising source for the advanced gravitational wave detectors, which started operation recently. The influence of finite-size effects (e.g., spin or tidal deformation) on the binary evolution is can be large. This talk gives an overview of recent progress in the analytic description of finte-size effects through an action principle for spinning point-particles. These spinning point-particles serve as an analytic model for extended bodies. The internal structure can be modelled by augmenting the point-particle with higher-order multipole moments. The dynamics of these multipoles can be modelled as a function of the spin and external tidal field, which completes the analytic description of the binary.