Investigation of High Energy Phenomena in Merging Galaxy Clusters with Numerical Simulations and X-ray Observations
| Project/Area Number |
19740096
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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 |
Astronomy
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| Research Institution | Yamagata University |
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Principal Investigator |
TAKIZAWA Motokazu Yamagata University, 理学部, 准教授 (70323160)
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| Project Period (FY) |
2007 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥3,630,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥630,000)
Fiscal Year 2010: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2009: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2008: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2007: ¥900,000 (Direct Cost: ¥900,000)
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| Keywords | 理論天文学 / 銀河団 / 数値シミュレーション / X線天文学 / X線観測 |
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| Research Abstract |
We studied high energy phenomena associated with cluster mergers through numerical simulations and X-ray observations. With N-body+(magneto) hydrodynamical simulations, we revealed characteristic magnetic field structures and uncertainty of mass estimation in merging clusters. We obtained upper-limits of nonthermal hard X-ray flux with Suzaku, and constrained lower limits of magnetic field strength. Joint analyses of Suzaku and weak lensing data revealed dynamical status of the systems.
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Report
(6 results)
Research Products
(53 results)
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[Journal Article] Hard X-ray Properties of the Merging Cluster Abell 3667 as Observed with Suzaku2009
Author(s)
Kazuhiro Nakazawa, Craig L.Sarazin, Madoka Kawaharada, Takao Kitaguchi, Sho Okuyama, Kazuo Makishima, Naomi Kawano, Yasushi Fukazawa, Susumu Inoue, Motokazu Takizawa, Daniel R.Wik, Alexis Finoguenov, Tracy E.Clarke
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Journal Title
Publications of the Astronomical Society of Japan 61
Pages: 339-355
NAID
Related Report
Peer Reviewed
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[Journal Article] Hard X-ray Properties of the Merging Cluster Abell 3667 as Observed with Suzaku2009
Author(s)
Kazuhiro Nakazawa, Craig L. Sarazin, Madoka Kawaharada, Takao Kitaguchi, Sho Okuyama, Kazuo Makishima, Naomi Kawano, Yasushi Fukazawa, Susumu Inoue, Motokazu Takizawa, Daniel R. Wik, Alexis Finoguenov, Tracy E. Clarke
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Journal Title
Publications of the Astronomical Society of Japan 61
Pages: 339-355
NAID
Related Report
Peer Reviewed
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