2011 Fiscal Year Final Research Report
Mergers of binary neutron star systems
| Project/Area Number |
22740163
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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 | Osaka University |
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Principal Investigator |
BAIOTTI Luca 大阪大学, レーザーエネルギー学研究センター, 特任助教 (00574047)
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| Project Period (FY) |
2010 – 2011
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| Keywords | 中性子星 / 一般相対性理論 / 数値シミュレーション / 磁気流体力学 / ブラックホール / 降着円盤 / 重力波 / ガンマ線バースト |
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| Research Abstract |
Gamma-ray bursts(GRBs) are among the most violent phenomena in the Universe. Just one GRB may emit as much energy as ten billion Suns. In the few seconds of its life, a GRB may outshine its own galaxy.
The central engine of GRBs is however still unknown. In order to solve this enigma, numerical solutions(simulations) of the Einstein, matter, and magnetic-field equations must be obtained. One type of GRBs(short in duration) is thought to originate from the merger of binary neutron star systems(BNSs). By investigating such systems in my simulations, I see the growth and organization of the initially small magnetic field in a funnel-like shape that may contain the jet that produces GRBs. This is a step forward the understanding of this mysterious phenomenon.
The other part of my work focused on computing gravitational waves, to provide templates for gravitational-wave detectors, like the KAGRA project recently started in Japan.
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