2008 Fiscal Year Final Research Report
Oxygen-mass-to-light ratios from galaxies to clusters of galaxies
| Project/Area Number |
18740111
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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 | Tokyo University of Science |
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Principal Investigator |
MATSUSHITA Kyoko Tokyo University of Science, 理学部, 准教授 (50366423)
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| Project Period (FY) |
2006 – 2008
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| Keywords | X線天文学 / 銀河 / 銀河団 / 高温プラズマ / 化学進化 |
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| Research Abstract |
銀河団のバリオンの大部分は数千万度の高温ガスとして存在し、大量の重元素を含んでいる。このうち酸素の量は過去のII型超新星の数を反映する。銀河団では中心部以外、銀河団ガス全体に含まれる酸素の分布についてはほとんどわかっていなかった。「すざく」衛星により、はじめて銀河団ガスの重元素分布の全体像が見え始めた。さらに、重元素の供給源である、渦巻銀河、S0銀河、楕円銀河の高温ガスの酸素の組成も求まった。
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[Journal Article] Suzaku Observation of Group of Galaxies NGC 507 : Temperature and Metal Distributions in the Intra-Cluster Medium2009
Author(s)
Sato, K., Matsushita, K., Ishisaki, Y., Yamasaki, N. Y., Ishida, M., Ohashi, T
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Journal Title
Publications of the Astronomical Society of Japan Vol.61, No.SP1
Pages: S353-S363
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[Journal Article] Suzaku Observations of Metallicity Distribution in the Intracluster Medium of the NGC 5044 Group2009
Author(s)
Komiyama, M., Sato, K., Nagino, R., Ohashi,T.,Matsushita,K
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Journal Title
Publications of the Astronomical Society of Japan Vol.61, No.SP1
Pages: S337-S352
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[Journal Article] Suzaku Observations of AWM 7 Cluster of Galaxies: Temperatures, Abundances, and Bulk Motions2008
Author(s)
Sato, K., Matsushita, K., Ishisaki, Y., Yamasaki, N. Y., Ishida, M., Sasaki, S., Ohashi, T
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Journal Title
Publications of the Astronomical Society of Japan Vol.60, No.SP1
Pages: S333-S342
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[Journal Article] Suzaku Observation of the Metallicity in the Hot Interstellar Medium of the Isolated Elliptical Galaxy NGC 7202008
Author(s)
Tawara, Y., Matsumoto, C., Tozuka, M., Fukazawa, Y., Matsushita, K., Anabuki, N
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Journal Title
Publications of the Astronomical Society of Japan Vol.60, No.SP1
Pages: S307-S316
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[Journal Article] Type Ia and II Supernovae Contributions to Metal Enrichment in the Intracluster Medium Observed with Suzaku2007
Author(s)
Sato, K., Tokoi, K., Matsushita, K., Ishisaki, Y., Yamasaki, N. Y., Ishida, M., Ohashi, T
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Journal Title
The Astrophysical Journal Volume 667, Issue 1
Pages: L41-L44
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[Journal Article] The abundance pattern of O, Mg, Si, and Fe in the intracluster medium of the Centaurus cluster observed with XMM-Newton2007
Author(s)
Matsushita,K.,Boehringer, H., Takahashi, I., Ikebe, Y
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Journal Title
Astronomy and Astrophysics Volume 462,Issue 3
Pages: 953-963
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[Journal Article] Suzaku Observation of the Metallicity Distribution in the IntraclusterMedium of the Fornax Cluster2007
Author(s)
Matsushita, K., Fukazawa, Y., Hughes, J. P., Kitaguchi, T., Makishima, K., Nakazawa, K., Ohashi, T., Ota, N., Tamura, T., Tozuka, M., Tsuru, T. G., Urata, Y., Yamasaki, N. Y
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Journal Title
Publications of the Astronomical Society of Japan Vol.59, No.SP1
Pages: 327-338
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