| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2011: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
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| Research Abstract |
Accepted theories of gas giant planet formation like Jupiter suggest that a massive rocky object with 10 Earth mass is formed first at 5AU and gravitationally captures nebular gas. However, some works indicate that the rapid inward migration occurs as a result of the gravitational interaction between a terrestrial planet and nebular gas, leading to the lack of rocky objects which are constituent of Jupiter. These theoretical results are inconsistent with observations. In order to overcome this difficulty, we systematically examined orbital evolution of Earth-sized planets, taking account into the effect of some physical processes on the planetary migration.
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