| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2018: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
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| Outline of Final Research Achievements |
Planets are formed from submicron-sized dust grains in a protoplanetary disk. In previous studies, the collisional evolution in a limited mass range, such as only among dust grains or among planetesimals. However, the importance of the wide mass range interaction such as protoplanets and pebbles is argued. Therefore, we develop a simulation code to treat the collisional evolution from dust grains to planet, whose mass range is more than 40 orders of magnitude. As the result of the simulation, we show cores of gas giant planets are formed in several hundred thousand years.
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