| Project/Area Number |
20540233
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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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 | Yamaguchi University |
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Principal Investigator |
WAJIMA Kiyoaki Yamaguchi University, 大学院・理工学研究科, 助教 (90452630)
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| Co-Investigator(Renkei-kenkyūsha) |
FUJISAWA Kenta 山口大学, 時間学研究所, 教授 (70311181)
SAWADA Satoko 国立天文台, 水沢VLBI観測所, 研究員 (00452631)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2010: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2009: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2008: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Keywords | 電波天文学 / 宇宙物理 / 国際協力 |
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| Research Abstract |
We successfully carried out wideband radio-interferometric observations with the new disk-based observation system to investigate activity and evolution of young radio galaxies, for which a high sensitivity data acquisition system is required. We also made simultaneous observations with Yamaguchi 32-m radio telescope and Korean VLBI Network toward active galaxies which show short-term variability, and obtained new results on the variability feature at mm-wavelength. We concurrently performed numerical calculations of the wideband spectral energy distribution toward a nucleus of a radio galaxy on the basis of an accretion disk model, and successfully reproduce the observed spectral features from radio to X-ray.
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