2013 Fiscal Year Final Research Report
Development of high accuracy component separation scheme between cosmic microwave background radiation and foreground emissions
| Project Area | The Physical Origin of the Universe viewed through the Cosmic Background Radiation - from Cosmological Inflation to Dark Ages - |
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| Project/Area Number |
21111005
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| Research Category |
Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
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| Allocation Type | Single-year Grants |
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| Review Section |
Science and Engineering
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| Research Institution | Tohoku University |
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Principal Investigator |
HATTORI Makoto 東北大学, 理学(系)研究科(研究院), 准教授 (90281964)
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| Co-Investigator(Kenkyū-buntansha) |
OOTSUBO Takafumi 東北大学, 大学院理学研究科, 准教授 (50377925)
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| Co-Investigator(Renkei-kenkyūsha) |
DOI Yasuo 東京大学, 総合文化研究科, 助教 (70292844)
MATSUMOTO Ryouji 千葉大学, 大学院理学研究科, 教授 (00209660)
TAMURA Motohide 国立天文台, 光学赤外研究部, 准教授 (00260018)
INOUE Kaiki 近畿大学, 理工学部, 准教授 (70388495)
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| Project Period (FY) |
2009-07-23 – 2014-03-31
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| Keywords | 宇宙マイクロ波背景放射 / 成分分離 / 遠赤外線天文学 / 宇宙塵 / 銀河磁場 / 磁気流体数値シミュレーション |
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| Research Abstract |
We have devoted our research activities to developing high accuracy component separation scheme which is able to separate cosmic microwave background radiation signal and foreground emission components signals originated from interstellar matter in our Galaxy from observed polarization data in microwave bands. We have completed a new original component separation scheme based on hierarchical bayesian methods. We have also performed studies which lead to deepening of our physical understandings of polarization microwave emission from the Galactic interstellar matter. One of these is all sky far infrared diffuse light map making from the all sky survey data obtained by the Japanese infrared satellite "
AKARI". The PC cluster machine bought by this financial support has played crucial role to complete the first version of the "AKARI" far infrared all sky maps within the research period of this budget.
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