2012 Fiscal Year Final Research Report
Toward unified understanding of Type I migration
| Project/Area Number |
22740296
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Solid earth and planetary physics
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| Research Institution | Waseda University (2012)
Kobe University (2010-2011) |
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Principal Investigator |
YAMADA Kou 早稲田大学, 政治経済学術院, 助教 (60424793)
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| Project Period (FY) |
2010 – 2012
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| Keywords | 惑星移動 / ガス円盤 / 輻射輸送 / 密度波 / 重力相互作用 / 原始惑星 |
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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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