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Space exposure of amino acids and their precursors in the Tanpopo mission using the International Space Station
https://repo.qst.go.jp/records/47198
https://repo.qst.go.jp/records/471981513e021-dff1-40e3-aa06-1b4e214f95ed
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2015-08-06 | |||||
| タイトル | ||||||
| タイトル | Space exposure of amino acids and their precursors in the Tanpopo mission using the International Space Station | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Kobayashi, Kensei
× Kobayashi, Kensei× Mita, Hajime× Yabuta, Hikaru× Nakagawa, Kazumichi× Kawamoto, Yukinori× Kaneko, Takeo× Obayashi, Yumiko× Kanda, Kazuhiro× Yoshida, Satoshi× Issay, Narumi× Imai, Eiichi× Hashimoto, Hirofumi× Yokobori, Shin-ichi× Yamagishi, Akihiko× WG, Tanpopo× 小林 憲正× 川本 幸徳× 金子 竹男× 吉田 聡 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | A wide variety of organic compounds have been found in space, and their relevance to the origin of life is discussed. Interplanetary dust particles (IDPs) are most promising carriers of extraterrestrial organic compounds, but presence of bioorganic compounds are controversial since they are so small and were collected in the terrestrial biosphere. In addition, IDPs are directly exposed to cosmic and solar radiation. Thus, it is important to evaluate the stability of organics in IDPs in space environment. We are planning a novel astrobiology mission named Tanpopo by utilizing the Exposed Facility of Japan Experimental Module (JEM/EF) of the International Space Station (ISS). Two types of experiments will be done: Capture experiments and exposure experiments. In the exposure experiments, organics and microbes will be exposed to the space environments to examine possible alteration of organic compounds and survivability of microbes. Selected targets for the exposure experiments of organic compounds are as follows: Amino acids (glycine and isovaline), their possible precursors (hydantoin and 5-ethyl-5-methyl hydantoin) and complex precursors “CAW” synthesized from a mixture of carbon monoxide, ammonia and water by proton irradiation. In addition to them, powder of the Murchison meteorite will be exposed to examine possible alteration of meteoritic organics in space. We will show the results of preparatory experiments on ground by using a UV lamp, a 60Co source, synchrotron facilities, and a heavy ion irradiation facility. | |||||
| 書誌情報 |
Transactions of the Japan Society for Aeronautical and Space Sciences, Aerospace Technology Japan 巻 12, 号 29, p. 1-6, 発行日 2014-11 |
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| 出版者 | ||||||
| 出版者 | Japan Society for Aeronautical and Space Sciences | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | http://dx.doi.org/10.2322/tastj.12.Pp_1 | |||||
