[M-IS07] Astrobiology

Wed. May 29, 2019 3:30 PM - 5:00 PM 201A (2F)

convener:Hikaru Yabuta(Hiroshima University, Department of Earth and Planetary Systems Science), Seiji Sugita(Department of Earth and Planetary Science, Graduate School of Science Sciece, The University of Tokyo), Misato Fukagawa(National Astronomical Observatory of Japan), Fujishima Kosuke(Tokyo Institute of Technology, Earth-Life Science Institute), Chairperson:Misato Fukagawa(名古屋大学大学院理学研究科), Kosuke Fujishima(ELSI 地球生命研究所)

Twenty years have passed since when the field of Astrobiology, which aims to unveil the origins, evolution, and habitability of life by integrating multidisciplinary fields, was established. Individual themes related to Astrobiology, such as chemical evolution in the early Solar System, formation of planetary system, prebiotic chemistry in the early Earth, evolution of life in the Earth's history, extremophile, and habitable planetary environments, has been studied by the knowledge and methods from the multiple fields, which has enabled us to explain "Where we came from" in some ways. However, despite an overwhelming number of investigations and discussions through gathering of the scientists from different fields, there has remained the long-standing unsolved question: How did abiotic materials gain biological function in the Earth and elsewhere in universe? There is still a large gap between prebiotic organic chemistry and biochemistry toward Origins of Life and planetary habitability. Therefore, the JpGU Astrobiology session focuses on pathfinding of "integration of astronomy, geoscience, and biochemistry", which will face an increasing need for the future Astrobiology. In order to enhance our understanding of "What is life", we propose to discuss the biochemical events linked with planetary systems, which is beyond the knowledge in a test tube, by an integration of exoplanets and molecular biology, etc. Through this approach, we will lead the discussions and developments of life-detection strategies for the future exploration of life in universe.

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Introduction (3:30 PM - 3:35 PM)

3:35 PM - 3:50 PM

[MIS07-01] METEOROID AND DEBRIS IMPACT FLUX IN LOW EARTH ORBIT WITNESSED BY THE TANPOPO CAPTURE PANELS ONBOARD THE ISS IN 2015-2017

*Hajime Yano¹, K. Yamamoto², E. Minakami², M. Eitel^1,3, S. Sasaki⁴, J. Imani⁵, K. Okudaira⁶, M. Higashide⁷, E. Imai⁸, Y. Kawaguchi⁹, Yoko Kebukawa¹⁰, H. Mita¹¹, M. Nishi¹², T. Noguchi¹³, Makoto Tabata¹⁴, A. Tsuchiyama¹², Hikaru Yabuta¹⁵, K. Arai⁸, H. Hashimoto¹, Kensei Kobayashi¹⁰, A. Yamagishi¹⁶ (1.Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 2.Hosei University, 3.University of Stuttgart, 4.Tokyo University of Technology, 5.Yuki Seimitsu, Co. Ltd., 6.University of Aizu, 7.JAXA/Aerospace Research and Development Directorate, 8.Nagaoka University of Technology, 9.Chiba Institute of Technology, 10.Yokohama National University, 11.Fukuoka Institute of Technology, 12.Kyoto University, 13.Kyushu University, 14.Chiba University, 15.Hiroshima University, 16.Tokyo University of Pharmacy and Life Science)

3:50 PM - 4:10 PM

[MIS07-02] Growth and transport of dust, ice, and organics in the inner part of protoplanetary disks

★Invited Papers

*Satoshi Okuzumi¹ (1.Department of Earth and Planetary Sciences, Tokyo Institute of Technology)

4:10 PM - 4:25 PM

[MIS07-03] Model Prediction of Complex Organic Molecules in Protoplanetary Disks

*Hideko Nomura¹, Catherine Walsh², Tom J. Millar³ (1.Department of Earth and Planetary Sciences, Tokyo Institute of Technology, 2.School of Physics and Astronomy, University of Leeds, 3.School of Mathematics and Physics, Queen’s University Belfast)

4:25 PM - 4:40 PM

[MIS07-04] Abiotic synthesis of organic matters in environments simulating asteroids and the catalytic effect of minerals on amino acid formation

*Walaa Elmasry¹, Yoko Kebukawa¹, Kensei Kobayashi¹ (1.Yokohama National University)

4:40 PM - 4:55 PM

[MIS07-05] Peptide Formation from amino acid precursors under simulated submarine hydrothermal environments

*Kensei Kobayashi¹, Keisuke Naito¹, Koki Naito¹, Soushi Kuramoto¹, Ei-ichi Imai², MITA Hajime³, Yoko Kebukawa¹ (1.Yokohama National University, 2.Nagaoka University of Technology, 3.Fukuoka Institute of Technology)

Discussion (4:55 PM - 5:00 PM)

Session information