Spectroscopic Study on Cloud Formation of Dust and Molecules In Cool Objects (Brown Dwarfs and Red Giant Stars)
| Project/Area Number |
17540213
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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 |
Astronomy
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| Research Institution | The University of Tokyo |
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Principal Investigator |
TAKASHI Tsuji The University of Tokyo, 大学院・理学系研究科, 名誉教授 (20011546)
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| Project Period (FY) |
2005 – 2008
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| Project Status |
Completed (Fiscal Year 2008)
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| Budget Amount *help |
¥3,650,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥450,000)
Fiscal Year 2008: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2007: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2006: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2005: ¥900,000 (Direct Cost: ¥900,000)
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| Keywords | 宇宙物理 / 光学赤外線天文学 / 光球大気構造 / 赤外線スペクトル / 赤色巨星 / 成長曲線 / 外層大気構造 / 質量放出 / 褐色矮星 / 化学的非平衡 / 化学組成 / 同位体組成 / 外層構造 / ミクロ乱流モデル / 空間干渉計 / 可視度 / 赤色超巨星 / 分子光球 / 彩層 / 光球 / 超巨星 / 赤外スペクトル / 視線速度 / 動力学特性 / FTS |
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| Research Abstract |
We showed that the infrared spectra of red giant and supergiant stars are hybrid of at least two components originating in photosphere and extra molecular condensation (or referred to as Molsphere).
We showed that the infrared spectra of brown dwarfs can be interpreted consistently if we regard the critical temperature, which we introduced as a parameter to represent the thickness of the dust cloud in our UCM (Unified Cloudy Model), to take various values in different objects.
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Report
(5 results)
Research Products
(17 results)
