Study of High Energy Activity in the Milky Way Using Spatial and Time Fluctuations of the Galactic Ridge X-ray Emission
| Project/Area Number |
25887028
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| Research Category |
Grant-in-Aid for Research Activity Start-up
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| Allocation Type | Single-year Grants |
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| Research Field |
Astronomy
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| Research Institution | Shizuoka University |
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Principal Investigator |
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| Project Period (FY) |
2013-08-30 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Keywords | X線天文学 / 天の川銀河 |
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| Outline of Final Research Achievements |
Using the Galactic plane data of Suzaku, I measured the spatial intensity fluctuation of the Galactic ridge X-ray emission (GRXE). I revealed that the combined intensity of the GRXE and cosmic X-ray background fluctuates about 3.6~8.1 % (1 sigma) over about 10 pc, except for systematic errors. This fluctuation is consistent with the prediction of the case that the GRXE is the superposition of many faint point sources.
I also studied the spatial profile of the highly ionized iron line intensity ratio over a few hundred pc. It suggests that the origin of the GRXE possibly differs in the disk and bulge regions.
Based on these studies, I also developed an educational material for high school students to study the Bohr model using Suzaku data.
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Report
(3 results)
Research Products
(3 results)
