Studies of X-ray Emission Mechanisms in High Magnetic Fields using Magnetars
| Project/Area Number |
15K05117
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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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 | Japan Agency for Marine-Earth Science and Technology (2016-2017)
Japan Aerospace EXploration Agency (2015) |
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Principal Investigator |
NAKAGAWA Yujin 国立研究開発法人海洋研究開発機構, 地球情報基盤センター, 特任技術副主幹 (50513454)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Keywords | マグネター / 超強磁場中性子星 / パルサー / 超強磁場中性紙星 |
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| Outline of Final Research Achievements |
Magnetars, which are highly magnetized neutron stars with field strengths of ~1e+14 G, show persistent X-ray emission as well as sporadic bursts. I found that the RMS variations for magnetars observed by Suzaku are significantly greater than the values expected from the Poisson distribution. In this study, I found that the RMS variations vary according to rotations of the magnetars. In addition, the RMS variations are well explained by a mathematical model. I proposed a unified view (“Micro-Burst Model”) of both the persistent X-ray emission and the burst emission from magnetars, based on these results and theoretical models.
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Report
(4 results)
Research Products
(4 results)
