PIRSA:21060029 Conference Other

DOI10.48660/21060029

Conference/School: The 24th Capra meeting on Radiation Reaction in General Relativity

Destounis, K. (2021). Gravitational-wave imprints of non-integrable extreme-mass-ratio inspirals. Perimeter Institute. https://pirsa.org/21060029

Destounis, Kyriakos. Gravitational-wave imprints of non-integrable extreme-mass-ratio inspirals. Perimeter Institute, Jun. 08, 2021, https://pirsa.org/21060029 

@misc{ pirsa_PIRSA:21060029,
  doi = {10.48660/21060029},
  url = {https://pirsa.org/21060029},
  author = {Destounis, Kyriakos},
  keywords = {Other},
  language = {en},
  title = {Gravitational-wave imprints of non-integrable extreme-mass-ratio inspirals},
  publisher = {Perimeter Institute},
  year = {2021},
  month = {jun},
  note = {PIRSA:21060029 see, \url{https://pirsa.org}}
}

Abstract

The detection of gravitational waves from extreme-mass-ratio inspirals (EMRIs) with upcoming space-borne detectors will allow for unprecedented tests of general relativity in the strong-field regime. Aside from assessing whether black holes are unequivocally described by the Kerr metric, they may place constraints on the degree of spacetime symmetry. Depending on exactly how a hypothetical departure from the Kerr metric manifests, the Carter symmetry, which implies the integrability of the geodesic equations, may be broken. In this talk, I will discuss the impact of non-integrability in EMRIs which involve a supermassive compact object with anomalous multipolar structure. After reviewing the features of chaotic phenomena in EMRIs, I will argue that non-integrability is precisely imprinted in the gravitational waveform. Explicit examples of non-integrable EMRIs will be discussed, as well as their role in LISA data analysis.

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