Study of Young Binary Associated with Gas Disks Based on Numerical Simulations and High Resolution Imaging
| Project/Area Number |
15K05017
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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 | Chiba University |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
MATSUMOTO Tomoaki 法政大学, 人間環境学部, 教授 (60308004)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | 数値シミュレーション / 連星 / 回転系 / 原始惑星系円盤 / 星形成 / 衝撃波 / 理論天文学 |
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| Outline of Final Research Achievements |
Numerical simulations of a young accreting binary have been performed on a numerical grid corotating with the binary. The accuracy of specific angular momentum has been greatly improved by adopting a new method of evaluating the Coriolis force. This improvement is out of the initial scope and suppresses unnatural oscillations seen in the numerical simulations thus far. As a bi-product, the new method provides an explicit difference scheme which guarantees conservation of the total energy of the fluid including the self-gravity.
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Report
(4 results)
Research Products
(22 results)
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[Journal Article] Vertical structure of the transition zone from infalling rotating envelope to disc in the Class 0 protostar, IRAS 04368+25572017
Author(s)
Sakai, Nami; Oya, Yoko; Higuchi, Aya E.; Aikawa, Yuri; Hanawa, Tomoyuki; Ceccarelli, Cecilia; Lefloch, Bertrand; Lopez-Sepulcre, Ana; Watanabe, Yoshimasa; Sakai, Takeshi; Hirota, Tomoya; Caux, Emmanuel; Vastel, Charlotte; Kahane, Claudine; Yamamoto, Satoshi
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Journal Title
MNRAS
Volume: 467
Issue: 1
Pages: L76-L80
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Submillimeter Polarization Observation of the Protoplanetary Disk around HD 1425272016
Author(s)
Kataoka, A., Tsukagoshi, T., Momose, M., Nagai, H., Muto, T., Dullemond, C. P., Pohl, A., Fukagawa, M., Shibai, H., Hanawa, T., & Murakawa, K.
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Journal Title
The Astrophysical Journal Letters
Volume: 831
Issue: 2
Pages: 6-12
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
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[Journal Article] Spiral Arms, Infall, and Misalignment of the Circumbinary Disk from the Circumstellar Disks in the Protostellar Binary System L1551 NE2016
Author(s)
Takakuwa, Shigehisa; Saigo, Kazuya; Matsumoto, Tomoaki; Saito, Masao; Lim, Jeremy; Hanawa, Tomoyuki; Yen, Hsi-Wei; Ho, Paul T. P.
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Journal Title
The Astrophysical Journal
Volume: 837
Issue: 1
Pages: 86-99
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Significant gas-to-dust ratio asymmetry and variation in the disk of HD 142527 and the indication of gas depletion2015
Author(s)
T. Muto, T. Tsukagoshi, M. Momose, T. Hanawa, H. Nomura, M. Fukagawa, K. Saigo, A. Kataoka, Y. Kitamura, S.Z. Takahashi, S. Inutsuka, T. Tkeuchi, H. Kobayashi, E. Akiyama, M. Honad, H. Fujiwara, H. Shibai
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Journal Title
Publications of the Astronomical Society of Japan
Volume: 67
Issue: 6
Pages: 1-1
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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