2009 Fiscal Year Final Research Report
High sensitive study of Cosmic X-ray Background with Suzaku
| Project/Area Number |
19740168
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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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 | Saitama University |
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Principal Investigator |
TERADA Yukikatsu Saitama University, 理工学研究科, 准教授 (90373331)
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| Project Period (FY) |
2007 – 2009
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| Keywords | 宇宙物理 |
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| Research Abstract |
The main purpose of this research is to search for an origin of the Cosmic X-ray background emission (CXB), which comes from everywhere in the universe. The origin is a long standing mystery. We have observed the CXB emission in the hard X-ray band, where the energy density of the CXB becomes at peak. We used the hard X-ray detector, HXD, onboard Suzaku, which has the highest sensitivity in the world. With this research, the systematic errors of estimation of the noise events of the HXD were reduced to make the best use of its sensitivity. We have successfully measured the hard X-ray spectra of the CXB, and tested the model of the active-galactic-nuclei origin.
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Research Products
(49 results)
