Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
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Outline of Final Research Achievements |
The astronomical observations show that there are disks of gas and solid particles around forming stars. The primitive meteorites made mainly of chondrules that are mm-sized spherical rocks. The most promising process for the formation of planetesimals is the streaming instability, which boost the concentration of solid particles when the drag force between the gas and solid particles act in a disk. This work elucidates that the condition for the particles concentration is expressed by two parameters, which enabled us to apply the condition for various protoplanetary disks.
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