2017 Fiscal Year Final Research Report
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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| Keywords | 数値シミュレーション / 連星 / 回転系 / 原始惑星系円盤 |
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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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| Free Research Field |
天文学
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