Search for super star clusters and intermediate-mass black holes in the depths of our Galaxy
| Project/Area Number |
24540236
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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 | Keio University |
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Principal Investigator |
OKA Tomoharu 慶應義塾大学, 理工学部, 教授 (10291056)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2012: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Keywords | 銀河系中心 / 巨大星団 / ブラックホール / 電波天文学 / 銀河中心核 |
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| Outline of Final Research Achievements |
This project intends to detect super star clusters (SSC) and intermediate-mass black holes (IMBHs) deeply embedded in the Galactic center region, based on large-scale surveys of the millimeter and sumillimeter-wave molecular line. During the three years project period, we succeeded to obtain huge data sets approximately as planned. Detailed mapping observations for the selected targets have unveiled two dozens of embedded SSCs and several candidates for IMBHs. In addition, we achieved a number of results: (1) revealing the chemical compositions in the Galactic circumnuclear disk, (2) discovery of the "pigtail" molecular cloud, (3) precise measurement of non dissociative shock in the W44 supernova remnant, and (4) understanding the formation process of the Tornado nebula.
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Report
(4 results)
Research Products
(72 results)
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[Journal Article] Daily monitor of Sagittarius A* at 22 GHz with the Japanese VLBI Network2014
Author(s)
M. Tsuboi, Y. Asaki, Y. Yonekura, Y. Miyamoto, H. Kaneko, M. Seta, N. Nakai, O. Kameya, M. Miyoshi, H. Takaba, K. Wakamatsu, Y. Fukuzaki, T. Morimitsu, K. Uehara, M. Sekido, T. Oka, S. Takekawa, T. Omodaka, T. Handa, & A. Takumi
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Journal Title
“The galactic center: Feeding and feedback in a normal galactic nucleus”, IAUS
Volume: 303
Issue: S303
Pages: 382-384
DOI
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[Journal Article] Kinematics of Shocked Molecular Gas Adjacent to the Supernova2013
Author(s)
Sashida, T., Oka, T., Tanaka, K., Aono, K., Matusura, S., Nagai, M., Seta, M.
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Journal Title
Astrophysical Journal
Volume: 774
Issue: 1
Pages: 10-16
DOI
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Peer Reviewed
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[Presentation] 45m望遠鏡と銀中と私2014
Author(s)
岡 朋治
Organizer
第32回NROユーザーズミーティング
Place of Presentation
国立天文台野辺山
Year and Date
2014-07-23 – 2014-07-24
Related Report
Invited
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[Presentation] High-velocity Compact Clouds in the Central Molecular Zone of Our Galaxy2012
Author(s)
Oka, Tomoharu; Tanaka, Kunihiko; Matsumura, Shinji; Sashida, Tomoro; Furusawa, Junichi; Nishikawa, Ayano; Onodera, Yui; Nagai, Makoto; Kamegai, Kazuhisa; Hasegawa, Tetsuo
Organizer
Galactic center mini-workshop 2012
Place of Presentation
National Astronomical Observatory, Mitaka, Tokyo, Japan
Related Report
Invited
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