| Project/Area Number |
15340088
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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| Research Institution | Japan Aerospace Exploration Agency |
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Principal Investigator |
YAMASAKI Noriko Japan Aerospace Exploration Agency, Department of High Energy Astrophysics, Associate Professor (20254146)
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| Co-Investigator(Kenkyū-buntansha) |
FUJIMOTO Ryuichi Kanazawa University, Department of Physics, Associate Professor (20280555)
ISHISAKI Yoshitaka Tokyo Metropolitan University, Department of Physics, Assistant Professor (10285091)
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| Project Period (FY) |
2003 – 2006
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| Project Status |
Completed (Fiscal Year 2006)
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| Budget Amount *help |
¥16,400,000 (Direct Cost: ¥16,400,000)
Fiscal Year 2006: ¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 2005: ¥2,800,000 (Direct Cost: ¥2,800,000)
Fiscal Year 2004: ¥5,300,000 (Direct Cost: ¥5,300,000)
Fiscal Year 2003: ¥6,500,000 (Direct Cost: ¥6,500,000)
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| Keywords | radiation detector / SQUID / magnetic thermometer / intergalactic matter / highenergy astrophysics |
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| Research Abstract |
The purpose of this research was to develop X-ray microcalorimetr using magnetic thermometers aiming for the detection of Oxygen emission lines from the warm-hot intergalactic medium. In this development, we succeeded to sense X-rays by metalic magnetic calorimeters firstly in Japan. The operation of magnetic calorimeters in adiabatic demagnetization refrigerators, which are considered to be only refrigeration method in space, were confirmed. Also future detectability of Oxygen lines by a wide field-of-view and high energy-resolution detectors were inspected in our Local Universe simulated by SPH. The CCD cameras onboard Suzaku satellite launched in 2005 achieved the best energy resolution for diffuse emission in Si detectors. We detected Galactic Oxygen emission with Suzaku, and obtained the tightest constraint for the emission from the intergalactic medium.
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