| Project/Area Number |
26220703
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| Research Category |
Grant-in-Aid for Scientific Research (S)
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| Allocation Type | Single-year Grants |
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| Research Field |
Astronomy
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| Research Institution | Tokyo Metropolitan University |
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Principal Investigator |
OHASHI Takaya 首都大学東京, 理学研究科, 特任教授 (70183027)
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| Co-Investigator(Kenkyū-buntansha) |
山崎 典子 国立研究開発法人宇宙航空研究開発機構, 宇宙科学研究所, 教授 (20254146)
三石 郁之 名古屋大学, 理学研究科, 講師 (90725863)
田原 譲 名古屋大学, 理学研究科, 名誉教授 (10135296)
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| Project Period (FY) |
2014-05-30 – 2019-03-31
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| Project Status |
Completed (Fiscal Year 2019)
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| Budget Amount *help |
¥206,050,000 (Direct Cost: ¥158,500,000、Indirect Cost: ¥47,550,000)
Fiscal Year 2018: ¥41,210,000 (Direct Cost: ¥31,700,000、Indirect Cost: ¥9,510,000)
Fiscal Year 2017: ¥41,210,000 (Direct Cost: ¥31,700,000、Indirect Cost: ¥9,510,000)
Fiscal Year 2016: ¥41,210,000 (Direct Cost: ¥31,700,000、Indirect Cost: ¥9,510,000)
Fiscal Year 2015: ¥41,210,000 (Direct Cost: ¥31,700,000、Indirect Cost: ¥9,510,000)
Fiscal Year 2014: ¥41,210,000 (Direct Cost: ¥31,700,000、Indirect Cost: ¥9,510,000)
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| Keywords | 銀河間物質 / 銀河団 / Ｘ線分光 / マイクロカロリメータ / Ｘ線望遠鏡 / 宇宙物理 / Ｘ線天文学 / 人工衛星 / 超伝導材料・素子 / ダークバリオン / 宇宙の大規模構造 / 科学衛星 / X線天文学 / 超伝導材料•素子 |
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| Outline of Final Research Achievements |
High resolution X-ray spectroscopy has been developed, with the aim of directly observing warm-hot plasma, likely to distribute along the large-scale structure of the universe, with a future X-ray astronomy satellite called DIOS (Diffuse Intergalactic Oxygen Surveyor). Development of microcalorimeter, cooling system and X-ray telescope was advanced. The first microcalorimeter system was flown on the X-ray astronomy satellite ASTRO-H (Hitomi) in 2016. The instrument detected the turbulence of hot gas in the Perseus cluster, and gave a clear feature of the resonance scattering effect in this cluster. Furthermore, development of the TES calorimeter and lightweight telescope for a future mission such as Super DIOS has been carried out. With array type TES calorimeters, provided by SRON, our GHz multiplex reading of 40 pixels resulted an energy resolution of 3.3 eV. The development of lightweight X-ray telescope achieved an angular resolution of about 15 arcsecond for a single reflection.
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| Academic Significance and Societal Importance of the Research Achievements |
学術的意義としては、高精度のＸ線分光の技術的基盤を確立することに貢献したことが挙げられる。宇宙ではASTRO-H衛星の成果を得たが、原子核物理 (K中間子原子の測定)、惑星科学 (小惑星サンプルのＸ線分析) などへの応用実験も広がりつつあり、本研究の波及効果は大きい。社会的意義としてはこの技術が広く実用化された時に、高精度のＸ線分析などをもとに産業応用を広げていくことが期待される。
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| Assessment Rating |
Result (Rating)
C: There is no prospect of the research result as progress in the research is delayed than the initial goal. A reduction of the research budget or cancellation of the research should be implemented.
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