Black hole ringdown and quasinormal modes


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}}

Aaron Zimmerman The University of Texas at Austin


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.