Asymmetric Binaries meet Fundamental Astro-Physics

Session

Self Force

20 Sept 2023, 15:00

GSSI

Contribution list Timetable

4. State of the art in gravitational self-force and the post-adiabatic inspiral in Schwarzschild

Leanne Durkan (The University of Texas at Austin)

20/09/2023, 15:00

I will discuss what is the current state of the art for gravitational self-force waveforms and the ingredients that go into them. I will discuss how the second-order metric perturbation is used to calculate the amplitude, flux and phase of a gravitational wave and how the slowly-evolving first-order metric perturbation contributes to sourcing perturbations at second order. I will demonstrate...

5. Adiabatic radiation reaction to the constants of motion in Kerr

Takahiro Tanaka (University of Kyoto)

20/09/2023, 15:30

I review how to compute the adiabatic radiation reaction to the
constants of motion including the Carter constant in Kerr spacetime.
I also talk about extending these ideas to post-adiabatic order, i.e.,
one order higher in the mass ratio, which would significantly simplifies
the construction of the gravitational wave waveform necessary for
the observation of extreme mass-ratio in-spirals.

6. Secondary spin in asymmetric binaries

Lisa Drummond (MIT)

20/09/2023, 16:00

Accurate models of large mass-ratio black hole binary systems must include post-geodesic corrections which account for forces driving the small body away from the geodesic. One such effect is called the spin-curvature force which occurs when the secondary spin associated with the smaller black hole couples to the curvature of the background spacetime. In recent years, considerable progress has...

7. Discussion

Carlos Lousto (Rochester Institute of Technology), Niels Warburton (University College Dublin)

20/09/2023, 17:00