2015 Fiscal Year Final Research Report
Possibility of the evaporation of planetesimals in the protoplanetary disk
| Project/Area Number |
25610133
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Solid earth and planetary physics
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| Research Institution | Kurume University (2015)
Tokyo Institute of Technology (2013-2014) |
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Principal Investigator |
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Keywords | 惑星起源・進化 |
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| Outline of Final Research Achievements |
When the relative velocity between a planetesimal and the gas disk exceeds the speed of sound of the gas, a bow shock is produced. We find that the velocities relative to the gas disk of planetesimals a few hundred kilometers in size exceed 10 km/s in the asteroid region due to the mean-motion resonance and the secular resonance of a Jovian planet. The shock is enough strong to cause the evaporation of icy planetesimal. Our results also suggest that chondrules were produced effectively by the bow shocks.
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| Free Research Field |
惑星形成
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