2009 Fiscal Year Final Research Report
Observation of the site of particle acceleration near black holes by high-speed spectrosopy
| Project/Area Number |
19340044
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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 |
Astronomy
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| Research Institution | Kyoto University |
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Principal Investigator |
MINESHIGE Shin Kyoto University, 大学院・理学研究科, 教授 (70229780)
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| Co-Investigator(Kenkyū-buntansha) |
KAWABATA Kohji 広島大学, 宇宙科学センター, 助教 (60372702)
UEMURA Makoto 広島大学, 宇宙科学センター, 助教 (50403514)
NOGAMI Daisaku 京都大学, 大学院・理学研究科附属天文台, 助教 (20332728)
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| Project Period (FY) |
2007 – 2009
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| Keywords | コンパクト天体 / 高速分光 / 放射磁気流体シミュレーション |
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| Research Abstract |
Radiation from compact objects, such as black holes, is known to exhibit rapid variations, though its origin remains to be an open question. In this project we construct a high-speed spectroscopy system and perform high-optical speed spectroscopy of close binary systems, aiming at detecting rapid color changes, that is, an evidence of particle acceleration. On schedule we have completed the system, attached it to the "Kanata" telescope at the Hiroshima Observatory, and observed cataclysmic variables, finding some interesting variations. We also perform radiation-magnetohydrodynamic simulations of accretion flow and are trying to interpret our observational findings.
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[Book]2008
Author(s)
Kato, S., Fukue, J., Mineshige, S.
Publisher
Kyoto University Press
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