Development of a radiative transfer model for Super-Earths and mapping of a habitable zone
| Project/Area Number |
25800264
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Meteorology/Physical oceanography/Hydrology
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| Research Institution | Kobe University |
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Principal Investigator |
Onishi Masanori 神戸大学, 理学(系)研究科(研究院), 研究員 (50644887)
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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 |
¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | 系外惑星 / ハビタブルゾーン / 放射伝達 / スーパーアース / 水損失限界 / モデル開発 / 射出限界 / 対流圏界面 / water loss limit / 惑星放射 |
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| Outline of Final Research Achievements |
In order to estimate how habitable zone spreads in outer space and discuss about habitability for exoplanets including Super-Earths, a radiative transfer model was developed. The model is based on line-by-line method and calculates planetary radiative transfer from arbitrary temperature and mixing ratio profiles. A model based on k-distribution method was also developed for radiative-convective models and atmospheric global circulation models. These models indicate that there are two regimes for tropopause in planetary atmospheres, which is important for determining an inner edge of habitable zone. The tropopause regimes are a dry low-temperature regime and a moist high-temperature regime.
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Report
(4 results)
Research Products
(31 results)
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[Presentation] Two humidity regimes of stratosphere on a moist atmosphere2016
Author(s)
Masanori Onishi, George L. Hashimoto, Kiyoshi Kuramoto, Yoshiyuki O. Takahashi, Yasuto Takahashi, Masaki Ishiwatari, Yoshi-Yuki Hayashi
Organizer
International Workshop on "Exoplanets and Disks: Their Formation and Diversity III"
Place of Presentation
Hotel Nikko Yaeyama (Okinawa, ishigaki)
Year and Date
2016-02-21
Related Report
Int'l Joint Research
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[Presentation] Radiation model development and its use for exoplanets2015
Author(s)
Masanori Onishi, George L. Hashimoto, Kiyoshi Kuramoto, Yoshiyuki O. Takahashi, Yasuto Takahashi, Masaki Ishiwatari, Yoshi-Yuki Hayashi
Organizer
Japanese-French model studies of planetary atmospheres
Place of Presentation
Kobe University (Hyogo, Kobe)
Year and Date
2015-05-11
Related Report
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[Presentation] Development of a radiative transfer model for steam atmospheres and application to Earth-like planets2015
Author(s)
Masanori Onishi,Yasuto Takahashi, Yoshiyuki O. Takahashi, Yutaka Abe, Keiko Hamano, George L. Hashimoto, Yoshi-Yuki Hayashi, Masaki Ishiwatari, Hajime Kawahara, Kiyoshi Kuramoto
Organizer
Workshop on Exoplanets in JFY2014
Place of Presentation
Fukutake Hall, The University of Toky
Year and Date
2015-03-02 – 2015-03-03
Related Report
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