日本語
The University of Electro-Communications 
Graduate School of Informatics and Engineering, School of Informatics and Engineering 
Department of Engineering Science, Cluster III (Fundamental Science and Engineering) 

Associate Professor 
Takeshi SAKAI 

Personal website  

Career
自然科学研究機構 国立天文台 野辺山宇宙電波観測所  研究員  2004/04/01-2009/03/31 
東京大学大学院理学系研究科天文学教育研究センター  特任助教  2009/04/01-2013/03/31 

Academic background
新潟県立長岡高校  1994/03  Graduated 
Tokyo Institute of Technology  Faculty of Science  地球惑星科学科  1999/03  Graduated 
The University of Tokyo  Graduate School, Division of Science  物理学専攻  Master's program  2001/03  Completed 
The University of Tokyo  Graduate School, Division of Science  物理学専攻  Doctoral program  2004/03  Completed 

Academic degrees
理学  The University of Tokyo  2004/03 

Classes responsible within the university
2017  電子情報システム実験第一実験  Spring semester  Undergraduate, daytime 
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Current research areas
Astronomy 

Current research subjects
化学組成から探る星団形成初期の分子雲分裂過程とその多様性  電波天文学、星形成、大質量星、分子雲、星間分子  2013/04-2016/03 

Published papers
Paper  Yes  Vertical structure of the transition zone from infalling rotating envelope to disc in the Class 0 protostar, IRAS 04368+2557  Joint  Sakai, Nami; Oya, Yoko; Higuchi, Aya E.; Aikawa, Yuri; Hanawa, Tomoyuki; Ceccarelli, Cecilia; Lefloch, Bertrand; López-Sepulcre, Ana; Watanabe, Yoshimasa; Sakai, Takeshi; Hirota, Tomoya; Caux, Emmanuel; Vastel, Charlotte; Kahane, Claudine; Yamamoto, Satoshi  Monthly Notices of the Royal Astronomical Society: Letters  467/ 1, L76-L80  2017/05 
Paper  Yes  Low Leakage Current Nb-Based Tunnel Junctions with an Extra Top Al Layer  Ikeya, M., Noguchi, T., Kojima, T., Sakai, T.  IEICE Transactions on Electronics  E100-C/ 3, 298-297  2017/03 
Paper  Yes  L483: Warm Carbon-chain Chemistry Source Harboring Hot Corino Activity  Oya, Y., Sakai, N., Watanabe, Y., Higuchi, A. E., Hirota, T., López-Sepulcre, A., Sakai, T., Aikawa, Y., Ceccarelli, C., Lefloch, B., Caux, E., Vastel, C., Kahane, C., Yamamoto, S.  The Astrophysical Journal  837, id. 174-  2017/03 
Paper  Yes  Astrochemical Properties of Planck Cold Clumps  Joint  Tatematsu, K., Liu, T., Ohashi, S., Sanhueza, P., Nguyễn Q., Hirota, T., Liu, S.-Y., Hirano, N., Choi, M., Kang, M., Thompson, M. A., Fuller, G., Wu, Y., Li, D., Di Francesco, J., Kim, K.-T., Wang, K., Ristorcelli, I., Juvela, M., Shinnaga, H., Cunningham, M., Saito, M., Lee, J.-E., Tóth, L. V., He, J., Sakai, T., Kim, J., JCMT Large Program “SCOPE” collaboration; TRAO Key Science Program “TOP” collaboration  The Astrophysical Journal Supplement Series  228, id. 20-  2017/02 
Paper  Yes  Discovery of a Hot Corino in the Bok Globule B335  Joint  Imai, Muneaki; Sakai, Nami; Oya, Yoko; López-Sepulcre, Ana; Watanabe, Yoshimasa; Ceccarelli, Cecilia; Lefloch, Bertrand; Caux, Emmanuel; Vastel, Charlotte; Kahane, Claudine; Sakai, Takeshi; Hirota, Tomoya; Aikawa, Yuri; Yamamoto, Satoshi  The Astrophysical Journal Letters  830/ 2, id. L37-  2016/10 
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Researcher accepted
Domestic  Post-doctoral researcher  2017-Present 
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Past records of joint or funded research
電波天文用広IF帯域SIS素子の開発とそれらを用いた大質量星形成過程の解明  2013-2013  Commissioned research  Funded commissioned research 
野辺山45m望遠鏡用140 GHz帯受信機の開発  2011-2011  Joint research  Domestic joint research 
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Public lectures
銀河研究の最前線  朝日カルチャーセンター  2016/09/03 
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Memberships of academic societies
日本天文学会 
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Committee or council involvement
日本天文学会年会実行委員会  委員  2015/04-Present 
国立天文台野辺山宇宙電波観測所プログラム小委員会  委員  2014/08/01-2016/07/31 
国立天文台研究交流委員会  委員  2014/07/01-2018/06/30 
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Committee activity in the University
図書館委員  2017/04-Present 
卒研配属WG  2013-2015/03 
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