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Center for Astrophysics Research and Technologies Seminar Series Information


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Simulations of binary black holes and the self-force

Thursday February 6, 2020
2:00 pm

 Presenter:  Aaron Zimmerman, UT Austin
 Series:  Nuclear, Particle, Astroparticle and Cosmology (NUPAC) Seminars
 Abstract:  Modeling the inspiral and merger of two black holes, together with the gravitational waves they emit, amounts to solving the relativistic two-body problem. Many approaches exist to tackle this challenge, ranging from analytic approximations to large-scale numerical simulations. Each approach is viable in a limited region of parameter space, and where regions overlap techniques can be compared and refined, driving further progress. In this talk I will discuss numerical simulations of binary black holes, and compare them to a variety of predictions from the self-force approximation. This is a perturbative approach to the two-body problem when the binary has a large ratio of masses. Further development of this approximation is needed in order to predict the inspiral of stellar mass black holes into supermassive black holes, a key observational target for the future space-based gravitational wave detector LISA.
 Host:  Francis-Yan Cyr-Racine
 Location:  PAIS-3205, PAIS

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