Laboratories
Home > Laboratories > Advanced Science Institute > Computational Astrophysics Laboratory
Computational Astrophysics Laboratory
Toshikazu EBISUZAKI
Chief Scientist
Toshikazu EBISUZAKI (Ph.D.)
mail

Click

Research Areas

Computational Astrophysics Laboratory promotes in JEM-EUSO (Extreme Universe Space Observatory on the Japan experiment module of the International space station) mission that observes giant-air showers by ultra-high-Energy cosmic ray from the orbit. JEM-EUSO is a super wide-field (60 degrees) telescope with a diameter of 2.5 meters planed to be installed in International Space Station. Other active studies are running in parallel for the development of super-high speed special purpose computers and the large scale simulations of bio-molecules and formation process of super massive black-holes and its relation to hypernova/gamma-ray burst, computational materials science, and education with computers.

Research Subject

  1. Extreme Energy Cosmic-Rays
  2. Astrophysical Simulations
  3. Development of Super-High Speed Special-Purose Computers
  4. Materials Science of Earth explored by quantum simulation
  5. Development of a G-APD camera with sub-μsec sampling and its application to bio molecular science

Related links

  1. RIKEN Advanced Science Institute Website_Laboratories PageNew Window
  2. Individual Website Laboratory PageNew Window

RIKEN RESEARCH

January 14,2011
Hydrogen gas: Under pressure
Simulations have explained the peculiar nature of molecular hydrogen vibration under high pressure New Window
December 18, 2009
Supernovae host a pasta dinner
The nuclei in the core of a collapsing supernova can form a range of unusual 'pasta-like' structures New Window
October 05,2007
Just add barium
Squashed carbon balls show promising electronic properties New Window

List of Selected Publications

  1. Ishiyama, T; Makino, J; Ebisuzaki, T
    "Gamma-ray Signal from Earth-mass Dark Matter"
    A stropysical Journalm (Letters), 723, L195-L200, (2010).
  2. Arai, N; Yasuoka, K; Koishi, Y; and Ebisuzaki, T
    "Asymmetric Brownian Moter Driven by Bubble Formation in a Hydrophobic Channel"
    ACS Nano, 4(10) 5905-5913 (2010)
  3. Jianjun Yang, John S Tse and Toshiaki Iitaka
    "First-principles studies of liquid lithium under pressure"
    J. Phys.: Condens. Matter 22, 095503 (2010).
  4. Guoying Gao, Artem R. Oganov, Aitor Bergara, Miguel Martinez-Canales, Tian Cui, Toshiaki Iitaka, Yanming Ma, and Guangtian Zou,
    "High-pressure crystal structures and superconductivity of Stannane (SnH4)"
    PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 107 (4): 1317-1320 JAN 26 2010
  5. Watanabe, G; Sonoda, H; Maruyama, T; Sato, K; Yasuoka, K; Ebisuzaki, T.
    "Formation of Nuclear "Pasta" in Supernovae"
    PHYSICAL REVIEW LETTERS, 103 (12): Art. No. 121101 SEP 18 2009
  6. Matsubara, H; Ebisuzaki, T; Yasuoka, K
    "Microscopic insights into nucleation in a sulfuric acid-water vapor mixture based on molecular dynamics simulation"
    JOURNAL OF CHEMICAL PHYSICS, 130 (10): Art. No. 104705 MAR 14 2009
  7. Koishi, T; Yasuoka, K; Fujikawa, S; Ebisuzaki, T; Zeng, XC.
    "Coexistence and transition between Cassie and Wenzel state on pillared hydrophobic surface"
    PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 106 (21): 8435-8440 MAY 26 2009
  8. Fujimoto, K; Sydora, RD
    "Particle description of the electron diffusion region in collisionless magnetic reconnection"
    PHYSICS OF PLASMAS, 16 (11): Art. No. 112309 NOV 2009
  9. Ogawa, T; Kawasaki, Y; Takizawa, Y; Ebisuzaki, T; Sakaki, N; Higuchi, M; Uchihori, Y; Kitamura, H; Wada, S.
    "Radiation Resistance of Nd-Doped Laser Crystals for Space Application" vJAPANESE JOURNAL OF APPLIED PHYSICS, 48 (8): Art. No. 088001 Part 1 AUG 2009
  10. Kataoka, R; Ebisuzaki, T; Kusano, K; Shiota, D; Inoue, S; Yamamoto, TT; Tokumaru, M.
    "Three-dimensional MHD modeling of the solar wind structures associated with 13 December 2006 coronal mass ejection"
    JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 114: Art. No. A10102 OCT 6 2009

Members

Principal Investigator

Toshikazu EBISUZAKI
Chief Scientist

Staff Scientist

Toshiaki IITAKA
Senior Research Scientist
Yoshiyuki TAKIZAWA
Senior Research Scientist
Tomoki MATSUYAMA
Senior Research Scientist

Postdoctoral Fellow

Keizo FUJIMOTO
Special Postdoctoral Researcher
Daikou SHIOTA
Special Postdoctoral Researcher
Yoshiya KAWASAKI
Contract Researcher
Kenji SHINOZAKI
Contract Researcher
Hiroko MIYAMOTO
Postdoctoral Researcher

Student Trainee

Kazuhiro HIGASHIDE
Junior Research Associate
Francesco FENU
International Program Associate

Technical Assistant

Iriko KANEKO
Technical Staff I
Katsuhiko TSUNO
Technical Staff I