| Budget Amount *help |
¥38,220,000 (Direct Cost: ¥29,400,000、Indirect Cost: ¥8,820,000)
Fiscal Year 2018: ¥8,580,000 (Direct Cost: ¥6,600,000、Indirect Cost: ¥1,980,000)
Fiscal Year 2017: ¥8,450,000 (Direct Cost: ¥6,500,000、Indirect Cost: ¥1,950,000)
Fiscal Year 2016: ¥11,050,000 (Direct Cost: ¥8,500,000、Indirect Cost: ¥2,550,000)
Fiscal Year 2015: ¥10,140,000 (Direct Cost: ¥7,800,000、Indirect Cost: ¥2,340,000)
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| Outline of Final Research Achievements |
The Fermi satellite and air Cherenkov telescopes have provided information on the GeV and TeV cosmic-ray protons. On the other hand, there are still no observational data on MeV cosmic-ray protons, except for those in the vicinity of the Earth. We made pioneer studies of MeV galactic cosmic-ray protons by using the precise X-ray spectroscopy. The results obtained from this study are as follows. Detection of Fe-neutral 6.4 keV emission lines generated by MeV cosmic-rays at the molecular clouds in the Galactic center region and the ones at the vicinities of several supernova remnants. Modeling of emission line structures derived from multiple ionizations of neutral atoms by cosmic-ray heavy ions. Calibration of the X-ray CCD camera onboard the Hitomi satellite. Development of X-ray CCD for the XRISM satellite. Production of prototype of a new type of X-ray sensors for the Next Generation Broadband X-ray Satellite.
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