| Project/Area Number |
15H06857
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| Research Category |
Grant-in-Aid for Research Activity Start-up
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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 | High Energy Accelerator Research Organization (2016)
Institute of Physical and Chemical Research (2015) |
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Principal Investigator |
Kyutoku Koutarou 大学共同利用機関法人高エネルギー加速器研究機構, 素粒子原子核研究所, 助教 (30757125)
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| Project Period (FY) |
2015-08-28 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Keywords | 重力波 / 一般相対論 / ブラックホール / 中性子星 / 初期値問題 / 宇宙物理 / 相対論 |
|---|
| Outline of Final Research Achievements |
LIGO (US) and KAGRA (Japan) will detect gravitational waves from merging black hole-neutron star binaries in the near future. Gravitational waves from them will enable us to know neutron star radii and the equation of state of high-density matter composing the neutron star. In this study, we develop a method to prepare initial conditions of circular black hole-neutron star binaries, which are necessary for numerical simulations to derive accurate gravitational waveforms to be compared with observed data. We successfully reduce the residual eccentricity to the 0.1% level for all of the cases we have tried so far with various parameters of binaries.
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