Seminar
Absorption in the black hole ringdown
Laura Sberna
Thursday, 11th of July, 2024 from 2:30 p.m. to 4 p.m.
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Sala de Seminários do DF, Pavilhão de Física, 2º piso
In the last couple of years, we have made enormous progress in understanding how black holes “ring” — beyond linear order in perturbation theory. One effect currently under study is the absorption of black hole modes by the black hole horizon, which should cause the mode frequencies to evolve, as well as mode mixing.
I will discuss the latest studies on this topic, and present some ongoing work looking for this effect in numerical simulations of black hole mergers.