| Project/Area Number |
20840051
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| Research Category |
Grant-in-Aid for Young Scientists (Start-up)
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| Allocation Type | Single-year Grants |
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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 |
TAKEI Yoh Japan Aerospace Exploration Agency, 宇宙科学研究本部, 助教 (30509857)
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| Project Period (FY) |
2008 – 2009
|
| Project Status |
Completed (Fiscal Year 2009)
|
| Budget Amount *help |
¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2009: ¥1,456,000 (Direct Cost: ¥1,120,000、Indirect Cost: ¥336,000)
Fiscal Year 2008: ¥1,664,000 (Direct Cost: ¥1,280,000、Indirect Cost: ¥384,000)
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| Keywords | X線天文学 / 中高温銀河間物質 / マイクロカロリメータ / SQUID / X線精密分光 / すざく / ダークバリオン / 銀河団 |
|---|
| Research Abstract |
We studied so-called missing baryon problem, which is one of the remaining questions in modern cosmology. We took two approaches : observational study and development of a new cryogenic detector. We have developed signal multiplexing technique for the cryogenic detector microcalorimeters and have extended the bandwidth of the detector by a order of magnitude. By performing numerical simulations, we confirmed the sensitivity of the detector and the simulation is consistent with the upper limit of the surface brightness we obtained from observations.
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