Gravitational Background Radiation from Supermassive Black Hole Coalescence(Poster)
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概要
- 論文の詳細を見る
We investigate expected gravitational wave spectrum from coalescing supermassive black hole (SMBH) binaries resulting from mergers of host galaxies. When galaxies merge, the central SMBHs sink to the center of the new merged galaxy and they finally coalesce producing low-frequency gravitational waves (GWs). Using a semi-analytic model of galaxy and quasar formations, we estimate the SMBH coalescence rate and find that the characteristic strain amplitude of the expected GW background spectrum is h_c(f) 〜 10^<-16>(f/yr^<-1>)^<-2/3> just below the detection limit from measurements of pulsar timing.
- 理論物理学刊行会の論文
- 2004-11-15
著者
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NAGASHIMA Masahiro
Department of Physics, Kyoto University
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Nagashima Masahiro
Department Of Physics University Of Durham
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Nagashima Masahiro
Department Of Earth And Space Science Graduate School Of Science Osaka University
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Inoue K
National Astronomical Observatory Jpn
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Enoki M
Osaka Univ. Osaka
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Enoki Motohiro
National Astronomical Observatory Of Japan
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INOUE Kaiki
National Astronomical Observatory
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SUGIYAMA Naoshi
National Astronomical Observatory
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