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FOXSI-3 Succeeded in Focusing Imaging Spectroscopic Observation in Soft X-rays from the Sun for the First Time in the World!

On September 7, 2018 MDT (September 8 in Japan time), an international team from Nagoya University, National Astronomical Observatory of Japan, Kavli IPMU at University of Tokyo, JAXA institute of Space and Astronautical Science, Tokyo University of Science, Minnesota University, University of California at Berkeley and NASA performed the thrid flight of the Focusing Optics Solar X-ray Imager (FOXSI-3) sounding rocket payload for solar X-ray observations from White Sands, New Mexico, USA. A high-speed X-ray CMOS camera developed in Japan was onboard, and the CMOS camera sucessfully performed imaging spectroscopy of X-rays from the Sun in a 0.5-5 keV range for the first time. We expect the FOXSI-3 observation will reveal detailed physical conditions of the solar corona and coronal small scale events.


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Arase identified pulsating aurora electrons

The Arase satellite for the first time identified the pulsating aurora electrons scattered by chorus waves in the magnetosphere.


Complicated variations of the upper atmosphere near a breakup aurora - Eos Research Spotlight

How does the upper atmosphere change by auroral breakup, this is an outstanding question in the Magnetosphere-Ionosphere-Thermosphere coupling study.  We published a paper in JGR Space Physics analyzing data taken from a sounding rocket and ground-based instruments.  The paper was chosen as an article of Eos Research Spotlight. 


Identification of generation of plasma waves in geospace.

The ISEE team identified the generation process of plasma waves in geospace by integrated studies on the satellite data analysis and supercomputer simulation.


A joint observation by solar observing satellites Hinode and IRIS quantitatively explores the formation of the solar chromosphere


The distribution of coronal holes over the last 40 years

In a collaboration with Chubu University, we developed an automated prediction technique for coronal holes using potential magnetic field extrapolation in the solar corona using synoptic magnetogram data obtained at Kitt Peak National Solar Observatory (USA). 


A Prototype of the Cherenkov Telescope Array Achieves First Light with Cosmic-Ray Air Showers

A prototype telescope and a camera of the Cherenkov Telescope Array successfully recorded cosmic-ray air-shower images. The prototypes were also inaugurated at the Paris Observatory.