PIRSA:21110046

Dynamics of spinning compact binaries: synergies between post-Newtonian and self-force approaches

Khalil, M. (2021). Dynamics of spinning compact binaries: synergies between post-Newtonian and self-force approaches. Perimeter Institute. https://pirsa.org/21110046

Khalil, Mohammed. Dynamics of spinning compact binaries: synergies between post-Newtonian and self-force approaches. Perimeter Institute, Nov. 25, 2021, https://pirsa.org/21110046 

          @misc{ pirsa_PIRSA:21110046,
            doi = {10.48660/21110046},
            url = {https://pirsa.org/21110046},
            author = {Khalil, Mohammed},
            keywords = {Strong Gravity},
            language = {en},
            title = {Dynamics of spinning compact binaries: synergies between post-Newtonian and self-force approaches},
            publisher = {Perimeter Institute},
            year = {2021},
            month = {nov},
            note = {PIRSA:21110046 see, \url{https://pirsa.org}}
          }

Mohammed Khalil

Perimeter Institute for Theoretical Physics

Talk number
PIRSA:21110046
Collection
Talk Type
Subject
Abstract

Accurate waveform models are crucial for gravitational-wave (GW) data analysis, and since numerical-relativity waveforms are computationally expensive, it is important to improve the analytical approximations for the binary dynamics. The post-Newtonian (PN) approximation is most suited for describing the inspiral of comparable-mass binaries, which are the main sources for ground-based GW detectors. In this talk, I discuss a method for deriving PN results valid for arbitrary mass ratios from first-order self-force results, by exploiting the simple mass dependence of the scattering angle in the post-Minkowskian expansion. I present results for the spin-orbit dynamics up to the fourth-subleading PN order (5.5PN) and the spin-spin dynamics up to the third-subleading PN order (5PN). I also discuss implications for the first law of binary mechanics.

Zoom Link: https://pitp.zoom.us/j/92861625861?pwd=cHpXUlM1d01pc09mNGhhQVZxRHBiQT09