| Project/Area Number |
26610184
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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 |
Geochemistry/Cosmochemistry
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| Research Institution | Chiba Institute of Technology |
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Principal Investigator |
SENSHU Hiroki 千葉工業大学, 惑星探査研究センター, 上席研究員 (30359202)
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| Co-Investigator(Kenkyū-buntansha) |
黒澤 耕介 千葉工業大学, 惑星探査研究センター, 研究員 (80616433)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2016: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
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| Keywords | 流星 / 人工流星 / ２段式軽ガス銃 / 高速カメラ / 分光 / 空力加熱 / 衝突実験 / 2段式軽ガス銃 / 分光分析 / 高速撮像 / 二段式軽ガス銃 / 流星発光 / 高速撮像計測 / 発光分光計測 / 熱気体力学 |
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| Outline of Final Research Achievements |
When a mmm-sized dust particle enters into Earth's atmosphere, it is observed as a bright streak, a shooting star. A shooting star is one-time event and, in most cases, the dust is completely vaporized. Thus the original size and composition is not easy to estimate only from ground-based observation.
In this study we constructed a laboratory experimental system to simulate shooting stars by using a two-stage light gas gun. In this system the simulated shooting star is observed by high-speed camera with the frame rate of 1 mega frames/s, and simultaneously the light from the shooting star is analysed by a spectrograph with the wavelength resolution of 5.7 nm.
Our laboratory experimental system will provide a fundamental data-set which relate the ground-based observational result to the original size and composition of the shooting star.
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