Possibility of the evaporation of planetesimals in the protoplanetary disk
| Project/Area Number |
25610133
|
|---|
| Research Category |
Grant-in-Aid for Challenging Exploratory Research
|
| Allocation Type | Multi-year Fund |
|---|
| Research Field |
Solid earth and planetary physics
|
|---|
| Research Institution | Kurume University (2015)
Tokyo Institute of Technology (2013-2014) |
|---|
Principal Investigator |
|
|---|
| Project Period (FY) |
2013-04-01 – 2016-03-31
|
| Project Status |
Completed (Fiscal Year 2015)
|
| Budget Amount *help |
¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
|
|---|
| Keywords | 惑星起源・進化 |
|---|
| 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.
|
Report
(4 results)
Research Products
(5 results)
