| Project/Area Number |
25287140
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Petrology/Mineralogy/Economic geology
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| Research Institution | Hokkaido University |
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Principal Investigator |
Tachibana Shogo 北海道大学, 理学(系)研究科(研究院), 准教授 (50361564)
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| Co-Investigator(Kenkyū-buntansha) |
Akira Miyake 京都大学, 理学(系)研究科(研究院), 准教授 (10324609)
Naoya Sakamoto 北海道大学, 創成研究機構, 助教 (30466429)
Jun Kawano 北海道大学, 創成研究機構, 特任助教 (40378550)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥15,210,000 (Direct Cost: ¥11,700,000、Indirect Cost: ¥3,510,000)
Fiscal Year 2015: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2014: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2013: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000)
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| Keywords | フォルステライト / 原始太陽系円盤 / 気相成長 / 速度論 / 宇宙鉱物学 / 原始惑星系円盤 / 凝縮 / ダスト / 赤外線天文学 |
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| Outline of Final Research Achievements |
Vapor growth experiments on forsterite, a major silicate mineral in space, were conducted under controlled protoplanetary disk conditions in order to understand its vapor growth kinetics. The growth experiments of forsterite at 1350 K in the presence of hydrogen gas (5 Pa) containing H2O (H2O/H2=0.05) were done at the supersaturation ratio of 15-20, and we found that the condensation coefficient of forsterite, a non-dimension parameter representing kinetic hindrance for vapor growth, is in the range of 0.003-0.006.
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