2011 Fiscal Year Final Research Report
Numerical-relativity studies for coalescing binary neutron stars and black hole-neutron star binaries
| Project/Area Number |
21340051
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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| Research Institution | Kyoto University |
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Principal Investigator |
SHIBATA Masaru 京都大学, 基礎物理学研究所, 教授 (80252576)
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| Co-Investigator(Kenkyū-buntansha) |
SEKIGUCHI Yuichiro 京都大学, 基礎物理学研究所, 特定研究員 (50531779)
KIUCHI Kenta 京都大学, 基礎物理学研究所, 特定研究員 (40514196)
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| Project Period (FY) |
2009 – 2011
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| Keywords | 宇宙物理(理論) |
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| Research Abstract |
Numerical-relativity simulations for the coalescence of binary neutron stars and black hole-neutron star binaries were performed for a wide variety of neutron star’s equations of state, for a wide range of masses of neutron stars and black holes, and fora wide range of black hole spins. We quantitatively and systematically clarified the merger process of these binaries, the product formed after the merger, and gravitational waves emitted. In particular, we clarified that gravitational waves in the merger phase depend strongly on the equations of state of neutron stars and black hole spins. This implies that they will be able to be constrained by the detection of gravitational waves which will be achieved in the near future by gravitational-wave detectors.
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