Researcher Database

（Last updated : 2024-11-15 21:22:03）　

NAGAOKA HIROSHI

Department / Course Research Organization of Science and Technology

Title / Position Associate Professor

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Other Affiliations
1.	Research Organization of Science and Technology Earth & Space Exploration Center

Academic background
1.	2010/04～2013/03	Graduate School of Advanced Science and Engineering │ Waseda University
2.	2008/04～2010/03	Graduate School of Advanced Science and Engineering │ Waseda University
3.	2004/04～2008/03	School of Science and Engineering │ Waseda University

Business career
1.		│ Research Organization of Science and Technology │ Ritsumeikan University
2.	2023/06 ～	│ Research Organization of Science and Technology │ Ritsumeikan University
3.	2021/04 ～ 2023/05	│ │ RIKEN
4.	2018/10 ～ 2019/03	│ Graduate School of Computer Science and Engineering │ The University of Aizu
5.	2018/04 ～ 2021/03	│ Institute of Space and Astronautical Science │ Japan Aerospace Exploration Agency
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Subject of research
1.	Developments of science instruments for planetary exploration
2.	Studies for the origin and formation process of terrestrial planets based on geochemical and mineralogical analyses for meteorites and returned samples, and remote sensing data analyses

Research summary
Lunar science and exploration Large-scaled planets such as the Earth are still changing in their surface and the information of early crustal materials mostly disappeared by thermal igneous activities for long periods. It is difficult to investigate the material information during the formation processes of early crust on the Earth. On the other hands, the Moon is thought to preserve the early crust with the crystallization age of ~4.5 Ga, and old geographical features, since the igneous activities of the Moon terminated in the early stage because the Moon is small. Therefore, the understanding of the Moon provides a key information to clarify the formation processes of terrestrial planets. I perform geochemical and mineralogical analyses for lunar meteorites and returned samples, and remote sensing data analyses, in order to investigate the origin and formation process of the Moon. And I develop science instruments onboard satellite and rover for science and resource explorations to the Moon.

Present specialized field

Papers
1.	2023/05	Lunar Mantle Composition Based on Spectral and Geologic Analysis of Low-Ca Pyroxene- and Olivine-Rich Rocks Exposed on the Lunar Surface │ Journal of Geophysical Research: Planets │
2.	2023/03/01	Sample studies and SELENE (Kaguya) observations of purest anorthosite (PAN) in the primordial lunar crust for future sample return mission │ Icarus │
3.	2022/02	Global Distribution and Geological Context of Co-Existing Occurrences of Olivine-Rich and Plagioclase-Rich Materials on the Lunar Surface │ Journal of Geophysical Research: Planets │
4.	2022	Electric discharge relevant to pyroelectric spontaneous polarization inducing irreproducibility of pyroelectric X-ray generation │ Proceedings of SPIE - The International Society for Optical Engineering │
5.	2022	Composition and distribution of the detected volatile materials at the lunar polar region │ 日本惑星科学会秋季講演会予稿集(Web) │
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Winning science prize
1.	2014	Earth, Planets and Space Highlighted Paper (Implications for the origins of pure anorthosites found in the feldspathic lunar meteorites, Dhofar 489 group)

Grants-in-Aid for Scientific Research -KAKENHI-
1.	2017/04/01 ～ 2020/03/31	Development of light-element analyses by active x-ray spectrometer for planetary exploration │ Grant-in-Aid for Young Scientists (B)
2.	2014/04/01 ～ 2018/03/31	Derivation of a new lunar geologic map for understanding lunar evolution │ Grant-in-Aid for Scientific Research (B)
3.	2014/04/01 ～ 2017/03/31	Development of active X-ray generator with increased intensity for planetary landing mission │ Grant-in-Aid for Young Scientists (B)