2010 Fiscal Year Final Research Report
Investigation of Activity and Evolution of Young Radio Galaxies with Japan-Korea Joint Radio Interferometer
| 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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| 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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[Journal Article] Internal Proper Motions of Methanol Masers at 6.7GHz in Massive Star-Forming Region Onsala 12011
Author(s)
Koichiro Sugiyama, Kenta Fujisawa, Akihiro Doi, Mareki Honma, Yasuko Isono, Hideyuki Kobayashi, Nanako Mochizuki, Yasuhiro Murata, Satoko Sawada-Satoh, Kiyoaki Wajima
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Journal Title
Publications of the Astronomical Society of Japan Vol.63, No.1
Pages: 53-61
Peer Reviewed
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[Journal Article] the VLBI group at Geographical Survey Institute, Shoichiro Asano, Hisao Uose, 'Japanese VLBI Network Observations of Radio-Loud Narrow-Line Seyfert 1 Galaxies'2008
Author(s)
Akihiro Doi, Noriyuki Kawaguchi, Yusuke Kono, Tomoaki Oyama, Kenta Fujisawa, Hiroshi Takaba, Hiroshi Sudou, Ken-ichi Wakamatsu, Aya Yamauchi, Yasuhiro Murata, Nanako Mochizuki,Kiyoaki Wajima, Toshihiro Omodaka, Takumi Nagayama, Naomasa Nakai, Kazuo Sorai, Eiji Kawai, Mamoru Sekido, Yasuhiro Koyama
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Journal Title
Publications of the Astronomical Society of Japan Vol.61, No.6
Pages: 1389-1398
Peer Reviewed
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[Remarks] 報道関連情報
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[Remarks] 山口大学理学部と韓国天文研究院電波天文研究本部との学術交流協定締結 読売新聞2010年3月26日朝刊,産経新聞2010年3月26日朝刊
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[Remarks] 理学部ハイライト研究記者発表 朝日新聞2008年1月26日朝刊,山口新聞2008年1月26日朝刊,中国新聞2008年1月31日朝刊
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