Graduate School of Science
Hokkaido University

International Course in Graduate School of Science

Cosmosciences

Cosmosciences

Many discoveries about the Universe in recent years have prompted us to reshape established paradigms, academic disciplines and our view of the world. For example, we now know that expanding Universe is also accelerating, that there are many planets outside of our Solar System, that dark matter and dark energy are the dominant components in the Universe, and that cosmic dust has been discovered in the very early Universe. These advances have been obtained by breaking down the conventional boundaries between physics, astronomy, planetary science and Earth science, allowing scientists to understand the Universe from its smallest elements through a full range of scientific methods.

Researchers at Hokkaido University have applied their wide selection of expertise to exploring the Universe over its breathtaking scale. Our interests run from elementary particles and atomic nuclei through to celestial objects such as the Earth and planets and the scale and formation of the Universe itself. In addition, we are committed to sharing these research activities through continuous education.

Our department, which was newly established in 2006, consists of three laboratories belonging to the Department of Physics, one laboratory belonging to the Department of Earth and Planetary Sciences, two laboratories belonging to the Institute of Low Temperature Science (ILTS), and one laboratory belonging to the Information Initiative Center (IIC). In addition to this, researchers in the Nuclear Reaction Data Centre, and Spacecraft Observation join our department. In our department, education and research in physics, astronomy, planetary science and Earth science are combined closely with the goal of breaking free from the boundaries separating observation, experiment and theory. We hope that our students will go on to use their knowledge both in science, and also throughout society with their wide and flexible knowledge base.

Research Fields

Observational Astronomy

Keywords: Observational astronomy, Galactic and extragalactic astronomy, Interstellar matter, Star formation

Theoretical Astrophysics

Keywords: Theoretical astronomy, Numerical simulations, Galaxy formation, Galaxy clusters, Supermassive blackholes, Interstellar matter, Star formation, Interstellar dust
  • Asao Habe
    Asao Habe

    Specially Appointed Professor

    PhD

    Fields of Specialty:Theoretical astronomy, numerical simulations, galaxy formation, galaxy clusters, supermassive black holes,
    interstellar matter, star formation, interstellar dust

    We are studying the formation and evolution of galaxies and cluster of galaxies in relation to structure formation in the expanding universe. Numerical simulation of the growth of “very small mass density fluctuation” generated in the early universe and comparison with the observation of the distant galaxies and cluster of galaxies that are currently being developed will show how galaxies and cluster of galaxies are formed and has been evolved clea.

  • Takashi Kozasa
    Takashi Kozasa

    Specially Appointed Professor

    PhD

    Fields of Specialty:Theoretical astronomy, numerical simulations, galaxy formation, galaxy clusters, supermassive black holes,
    interstellar matter, star formation, interstellar dust

    Theoretical study of the origin and evolution of interstellar dust and associated celestial and astrophysical phenomena. Research objects are dust formation and evolution in the early universe, supernova and supernova remnants, AGB star circumference structure, interstellar shock wave, solar system primitive material and so on.

  • Takashi Okamoto
    Takashi Okamoto

    Assistant Professor

    PhD

    Fields of Specialty:Theoretical astronomy, numerical simulations, galaxy formation, galaxy clusters, supermassive black holes,
    interstellar matter, star formation, interstellar dust

    Galaxy formation: Hydrodynamic simulations of galaxy formation . Semi-analytic modelling of galaxy formation, Environmental effects on galaxy evolution, Physics in the inter stellar medium.

  • Alexander Pettitt
    Alexander Pettitt

    Assistant Professor

    PhD

    Fields of Specialty:Theoretical astronomy, numerical simulations, galaxy formation, galaxy clusters, supermassive black holes,
    interstellar matter, star formation, interstellar dust

Theoretical Particle Physics

Keywords: Particle physics, Beyond the standard model, Dark matter, Dark energy, Grand unified theory, Superstring, Supersymmetry, Early Universe

Theoretical Nuclear Physics

Keywords: Quantum many body problems, Nuclear force, Unstable nuclei, Nucleosynthesis, Hadronic Matter

Planetary and Space Group

Keywords: Origin and evolution of planets and satellites, Material evolution during planetary system formation, Structure and dynamics of Earth and planetary atmospheres, Comparative planetology, Space exploration and ground based observation, Experimental studies, Theory and hierarchical numerical simulation models, Applications of information technology

Astrophysical Chemistry /Ice and Planetary Science

Keywords: Interstellar molecules, Ice dust, Amorphous solid water, Surface reactions

Phase Transition Dynamics

Keywords: Phase transition dynamics, Crystal growth, Ice, Snow, Surface/Interface science, In-situ observation

Information Media Science

Keywords: Learning science, Learning platforms, Open education

Nuclear Reaction Data Science

Keywords: Nuclear data, Nuclear reactions, Evaluation

Spacecraft Observation (JAXA)

Keywords: Planetary exploration, Infrared astronomy from space, Radio-astronomy from space
  • Takehiko Sato
    Takehiko Sato

    Professor

    PhD

    Fields of Specialty:Planetary exploration, infrared astronomy from space, radio astronomy from space

  • Yasuhiro Murata
    Yasuhiro Murata

    Associate Professor

    PhD

    Fields of Specialty:Planetary exploration, infrared astronomy from space, radio astronomy from space

  • Issei Yamamura
    Issei Yamamura

    Associate Professor

    PhD

    Fields of Specialty:Planetary exploration, infrared astronomy from space, radio astronomy from space