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Professor　SAKAMOTO, Seiichi

Research Field

  • Radio Astronomy, Interstellar Physics

Degree

  • Ph. D.

Summary of Research

  • My field of expertise is radio astronomy, and in particular, I am studying a wide variety of topics, including the structure, motion, physical and chemical state, distribution, formation, and evolution of interstellar molecular clouds, as well as the formation of star/planet systems and the formation and evolution of galaxies, for which these molecular clouds hold the key. I earned my Ph.D. degree in the Galactic Plane survey using the world's smallest radio telescope. In addition to the research using the radio telescopes in Nobeyama and other telescopes, I have been involved in the construction and operation of the Atacama Large Millimeter/submillimeter Array (ALMA), the world's largest radio telescope, at the 5000 m site in Chile. From April to December 2018, I served as the Director of the NAOJ Chile Observatory. I am currently the Head of the East Asian Integrated Engineering Team of ALMA. From April 2007 to July 2014, I served as the Director of Education and Public Outreach at the Institute of Space and Astronautical Science (ISAS), JAXA, where I coordinated education and public outreach, and external relations activities related to space science research. I also actively promote regional cooperation.

Research Achievements or Papers

  • Sakamoto, S. et al. 1994ApJ...425..641S "A Large Area CO (J = 2--1) Mapping of the Giant Molecular Clouds in Orion"
  • Sakamoto, S. et al. 1997ApJ...486..276S "An Out-of-Plane CO (J = 2-1) Survey of the Milky Way. II. Physical Conditions of Molecular Gas"
  • Sakamoto, S. et al. 1995ApJS..100..125S "An Out-of-Plane CO (J = 2--1) Survey of the Milky Way. I. The Data"
  • Sakamoto, S. 1996ApJ...462..215S "Effects of Molecular Cloud Properties on the CO-to-H2 Conversion Factor"
  • Sakamoto, S. et al. 1997ApJ...475..134S "An Isotope Study of Carbon Monoxide in the Edge-on Galaxy NGC 891"
  • Sakamoto, S., and Sunada K. 2003ApJ...594..340S "Small-Scale Structure of Low-Density Gas in a Dark Cloud Envelope: Kinematic Evidence for Phase Transition?"
  • Sakamoto, S. et al. 1998MNRAS.301..872S "A Search for Absorption of Mg and Ca Compounds in Molecular Clouds towards Galactic Continuum Sources"
  • Sakamoto, S. et al. 1997ApJ...481..302S "Extensive High-Resolution 12CO Imaging of L1641 in Orion"
  • Sakamoto, S. 2002ApJ...565.1050S "Detailed Structure of Low-Density Molecular Gas in High-Latitude Clouds"
  • Sakamoto, S. 1999ApJ...523..701S "Mass and Physical Conditions of Molecular Gas at Cosmological Distances Probed with CO Lines"

Academic Society

  • Astronomical Society of Japan
    International Astronomical Union
    The Japanese Society for Planetary Sciences
    The Japan Society for Aeronautical and Space Sciences

Other Activity

    See my personal webpage

Web Page

E-mail

  • sakamoto.seiichi[at]nao.ac.jp
    (In the mailing address, replace [at] with @)

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