PIRSA:16060014 Conference Cosmology

DOI10.48660/16060014

Conference/School: Cosmological Frontiers in Fundamental Physics 2016

Zimmerman, A. (2016). Black hole ringdown and quasinormal modes. Perimeter Institute. https://pirsa.org/16060014

Zimmerman, Aaron. Black hole ringdown and quasinormal modes. Perimeter Institute, Jun. 15, 2016, https://pirsa.org/16060014 

@misc{ pirsa_PIRSA:16060014,
  doi = {10.48660/16060014},
  url = {https://pirsa.org/16060014},
  author = {Zimmerman, Aaron},
  keywords = {Cosmology},
  language = {en},
  title = {Black hole ringdown and quasinormal modes},
  publisher = {Perimeter Institute},
  year = {2016},
  month = {jun},
  note = {PIRSA:16060014 see, \url{https://pirsa.org}}
}

Abstract

The first detection of gravitational waves came with an unexpected windfall: a clear signal from the merger of two black holes into a final, spinning black hole. General Relativity predicts that following merger, the final black hole relaxes by emitting radiation in a characteristic spectrum of decaying modes. I will discuss these ``quasinormal modes'' and what can be learned from them, as well as the black hole ringdown observed in GW150914. I will also explore the exotic side of ringdown, including the modes of nearly extremal black holes, and a tool for understanding the ringdown of black holes which differ from the standard Kerr solution.

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