Binary neutron star mergers and short gamma-ray bursts
| Project/Area Number |
22740178
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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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 |
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) |
2010 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2011: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2010: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | 宇宙物理 / 重力波 / 一般相対性理論 |
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| Research Abstract |
We theoretically investigated binary neutron star mergers by Numerical Relativity. We found that such an event could be detected by the gravitational wave observatory KAGRA and Advanced LIGO if it happened within the distance of about fifteen millions light years. We found that neutrinos from such a event could be simultaneously detected by the Hyper-Kamiokande as well. We quantitatively showed that the gravitational waves can assess the so-called merger hypothesis of gamma-ray bursts. If neutron stars have a magnetic field as large as that of magnetars, the amplified magnetic field by the magnetic winding can produce a poynting flux whose amplitude is as large as that of short-gamma ray burst.
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Report
(3 results)
Research Products
(25 results)
