| Project/Area Number |
26610048
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Astronomy
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| Research Institution | Kumamoto University |
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Principal Investigator |
Takahashi Keitaro 熊本大学, 大学院先端科学研究部(理), 准教授 (80547547)
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| Project Period (FY) |
2014-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2014: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | 宇宙磁場 / 電波天文学 / スパースモデリング / Square Kilometre Array / 偏波 / マルコフ連鎖モンテカルロ法 / トモグラフィ |
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| Outline of Final Research Achievements |
We conducted research on the Faraday tomography method which is a new radio astronomy method for exploring the three dimensional structure of the astrophysical magnetic field and the magnetic field in the intergalactic space and developed software for polarization analysis. By participating in Australia's low frequency radio telescope ASKAP and MWA as a member, we promoted software development, performance testing, physical interpretation etc. In particular, we performed performance tests of Faraday tomography standard algorithms called RM CLEAN and QU - fit, and simulated in what situations these algorithms work effectively. In order to compensate for the disadvantages of these methods, we developed software using advanced algorithms such as sparse modeling.
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