| Budget Amount *help |
¥42,770,000 (Direct Cost: ¥32,900,000、Indirect Cost: ¥9,870,000)
Fiscal Year 2021: ¥7,800,000 (Direct Cost: ¥6,000,000、Indirect Cost: ¥1,800,000)
Fiscal Year 2020: ¥8,060,000 (Direct Cost: ¥6,200,000、Indirect Cost: ¥1,860,000)
Fiscal Year 2019: ¥7,800,000 (Direct Cost: ¥6,000,000、Indirect Cost: ¥1,800,000)
Fiscal Year 2018: ¥7,800,000 (Direct Cost: ¥6,000,000、Indirect Cost: ¥1,800,000)
Fiscal Year 2017: ¥11,310,000 (Direct Cost: ¥8,700,000、Indirect Cost: ¥2,610,000)
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| Outline of Final Research Achievements |
Understanding the impact of disk winds on the evolution of protoplanetary disks (PPDs) and planet formation is the goal of this study. We demonstrated that ring-gap structures are created in protoplanetary disks via a global instability through magnetically-driven disk winds. For further studies with higher-resolution numerical simulations, we are constructing the framework of a cylindrical shearing box model. We also performed long-time calculations with s semi-analytical global model and found that the magnetically-driven disk wind plays an substantial role in the dispersal of the inner gas disk during the early and intermediate stage of the evolution, while the photoevaporating wind is important at later epochs in the outer disk. When the gas distribution of PPDs is significantly affected by the disk winds, the inward migration of solid bodies and protoplanets to the central star can be avoided and the planet formation effectively proceeds.
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