2015 Fiscal Year Final Research Report
High sensitive searches for the non-thermal emission from white dwarfs to verify a new Cosmic-ray origin
| Project/Area Number |
23340055
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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 | Saitama University |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
ISHIDA Manabu 宇宙航空研究開発機構, 宇宙科学研究所, 教授 (20249931)
BAMBA Aya 青山学院大学, 物理数理学科, 准教授 (70392082)
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| Project Period (FY) |
2011-04-01 – 2016-03-31
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| Keywords | 宇宙物理 / 宇宙線 / エックス線天文学 / ガンマ線天文学 / 強磁場白色矮星 / 粒子加速 |
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| Outline of Final Research Achievements |
The origin of Cosmic-rays, which are high energy particles from the universe, is a long standing mystery for hundred years since its discovery. Before this research, theoretical and observational approaches for the Cosmic-ray origins are achieved mainly on very energetic sites. Our approach is on the magnetic white dwarfs, which may show the same kind of non-thermal activities in the magnetosphere of neutron stars. As a result, a possibility that magnetic white dwarfs can generate Cosmic-rays is shown observationally from the X-ray and gamma-ray observations. In addition, basic studies to use future X-ray high sensitive missions and/or high energy gamma-ray telescopes are also performed.
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| Free Research Field |
エックス線宇宙物理学
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