2016 Fiscal Year Final Research Report
Study of Active Galactic Nucleus Feedback with X-ray Observations
| Project/Area Number |
26400228
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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 | Kyoto University |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Keywords | 活動銀河核 / ブラックホール / X線 |
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| Outline of Final Research Achievements |
We systematically analyzed the X-ray spectra of many active galactic nuclei in the local universe observed with Suzaku and XMM-Newton. We have found that (1) about half of radio galaxies have ultra fast outflows, (2) the mean solid angle of tori increases with luminosity at low luminosities, and (3) a key parameter that determines AGN feedback is the Eddington ratio. By optical spectroscopic observations of ultra-luminous X-ray sources, we have revealed that they are in the supercritical accretion state, ejecting a large amount of gas via disk winds.
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| Free Research Field |
X線天文学
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