2015 Fiscal Year Final Research Report
Search for black hole candidates deep within our Galaxy and understanding of their accretion processes through short-term X-ray variability study
| Project/Area Number |
24540239
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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 | Nihon University |
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Principal Investigator |
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| Research Collaborator |
FUKUSHIMA Kosuke
SUZUKI Kazuhiko
ONODERA Takuya
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| Project Period (FY) |
2012-04-01 – 2016-03-31
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| Keywords | ブラックホール / Ｘ線観測 / Ｘ線新星 / 突発天体 / 新天体 / 連星進化 / 全天Ｘ線監視装置 MAXI / 国際宇宙ステーション |
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| Outline of Final Research Achievements |
The MAXI (Monitor of All-sky X-ray Image) nova-alert system to discover transient objects, such as X-ray novae, has been improved. As a result, the system can trigger on low flux variations near detection limits of GSC (Gas Slit Camera) detectors in realtime, and 11 X-ray transients including three black hole candidates were newly discovered. We have also established the method of the power spectrum analysis to investigate short-term variations during scan observations, and confirmed the state transition of black hole candidates from the power spectrum analysis. In addition, we developed a nova-alert system for SSC (Solid-state Slit Camera) data.
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| Free Research Field |
Ｘ線天文学
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