We promote the studies of extreme energy cosmic-rays,
space debris removal by high intensity lasers,
and formation and evolution of a life planet.
EUSO is a new type of observatory that uses the earth's atmosphere as a detector. The sensor is a super wide-field telescope that detects extreme energy cosmic-rays with energy above 1019 eV. EUSO instrument can reconstruct the incoming direction of the extreme energy particles with accuracy better than several degrees. It's observational aperture of the ground area is a circle with 250 km radius and its atmospheric volume above it with a 60-degree field-of-view is about 1 tera-ton or more. The extreme energy particles can be traced back to their origin by their measured arrival direction with accuracy better than a few degrees. EUSO will also observe atmospheric luminous phenomena such as lightning, nightglow, and meteors. We have joined KLYPVE mission to provide a corrector lens, Russian photomultipliers, a laser head to enhance it’s ability sevenfold. Furthermore, space debris observation with EUSO telescope and their remediation by high power pulsed lasers.
Space debris are increasing in number in the process of space development. There threat to the spacecraft become significant. In particular, the small objects less than 10cm are believed to be most dangerous. We found that superwide field telescope, developed in EUSO project, can detect and track space debris with the size of 0.5-10cm. We may deorbit them by shooting a high intensity laser beam. We conduct technology development for the debris removal.
New project of KAKENHI, "Hadean Bioscience" has started in 2014. The laboratory leads the A05 Life Planet Group. We will clarify how the Earth established "Habitable Trinity" in which the materials and energy circulate in three major components: Landmass, Ocean, and Atmosphere. The necessary conditions are
We construct numerical model of an accretion disk around a protostar and found that solid particles accumulate at two site in the disk to form planets rapidly.
|Toshikazu Ebisuzaki||Chief Scientist|
|Yoshiyuki Takizawa||Senior Research Scientist|
|Tomoki Matsuyama||Senior Research Scientist|
|Marco Casolino||Research Scientist|
|Akira Mizuta||Research Scientist|
|Lech Piotrowski||Special Postdoctoral Researcher|
|Yoshiaki Kato||Contract Researcher|
|Naoto Sakaki||Contract Researcher|
|Tomohiro Tsukihana||Technical Staff I|
|Iriko Kaneko||Technical Staff I|
|Address|| 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
Information Science Building 4F
|cap-labinfo [at] riken.jp|