2017 Fiscal Year Final Research Report
Study of nonthermal phenomena of galaxy clusters through next generation multiwave obserbations and theoretical simulations
| Project/Area Number |
26400218
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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 |
Astronomy
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| Research Institution | Yamagata University |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
NAKAZAWA Kazuhiro 名古屋大学, 理学研究科, 准教授 (50342621)
KITAYAMA Tetsu 東邦大学, 理学部, 教授 (00339201)
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| Project Period (FY) |
2014-04-01 – 2018-03-31
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| Keywords | 銀河団 / X線天文学 / 電波天文学 |
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| Outline of Final Research Achievements |
We investigated the particle acceleration processes and physical status of the galaxy cluster radio relics through X-ray and radio observations, and constructed a theoretical model for them.In particular,we showed that the particle acceleration processes in the "toothbrush" radio relic cannot be explained by a simple diffusive shock acceleration model.We conducted SZ observations by ALMA with a spatial resolution of 5 arcsec, which is the highest ever, and found that the very high temperature component is located in the significantly different position from the X-ray peak. We contributed the PASJ invited review paper about the cosmic magnetism in low frequency radio astronomy as a coauther.
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| Free Research Field |
天文学
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