Collapse of a differentially rotating supermassive star to a supermassive black hole

Motoyuki Saijo, Ian Hawke

研究成果: Conference contribution

抄録

We investigate the collapse of differentially rotating supermassive stars by means of 3+1 hydrodynamic simulations in general relativity. We particularly focus on the formation of a rapidly rotating dynamic black hole, and find the following two features. Firstly, quasi-periodic gravitational waves continue to be emitted after the quasi-normal mode frequency has decayed. Secondly, when the newly formed black hole is almost extreme Kerr, the amplitude of the quasi-periodic oscillation is enhanced during the late stages of the evolution. Geometrical features, shock waves, and instabilities of the fluid are suggested as a cause of this amplification behaviour. This alternative scenario for the collapse of differentially rotating supermassive stars might be observable by LISA.

本文言語English
ホスト出版物のタイトル12th Marcel Grossmann Meeting on Recent Dev. in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories - Proc. of the MG 2009 Meeting on General Relativity
ページ801-803
ページ数3
出版ステータスPublished - 2012
外部発表はい
イベント12th Marcel Grossmann Meeting on Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories, MG 2009 - Paris
継続期間: 2009 7 122009 7 18

Other

Other12th Marcel Grossmann Meeting on Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories, MG 2009
CityParis
Period09/7/1209/7/18

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Nuclear and High Energy Physics

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