| Project/Area Number |
19540449
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Solid earth and planetary physics
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| Research Institution | National Astronomical Observatory of Japan |
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Principal Investigator |
WATANABE Junichi National Astronomical Observatory of Japan, 天文情報センター, 准教授 (50201190)
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| Project Period (FY) |
2007 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2009: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2008: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2007: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | 流星 / 流星群 / 彗星 / 小惑星 / 光赤外線天文学 / 光学赤外線天文学 |
|---|
| Research Abstract |
A new method to investigate the history of activities of parent comets or asteroids by using related meteor shower activities was developed, and applied to actual examples(Orionid meteor shower and Comet Halley, June Bootids meteor shower and and Comet Pons-Winnecke, October Draconids and comet Giacobini-Zinner). Several candidates of the dead-comets, which may have related meteor showers, have been picked up among the Near-Earth asteroids, and investigated. As a result, asteroid 2003WY25 has been identified as the parent object of Phoenicid meteor shower, and thought to be a dead comet. It is thought to have a cometary activity in 18^<th> century, but、but its activity should have been decreased in the 19^<th> century by our study. The future activities of the Phoenicids was also calculated, and actually observed by high-sensitivity video camera developed in this research.
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