Department of Physics, Tokyo University of Science
Graduate School of Natural Science and Technology, Kanazawa University
Department of Physics, Tokyo University of Science
Department of Physics, University of Tokyo
Department of Astronomy,Kyoto University
Japan Science and Technology Agency
Department of Physics, Tokyo University of Science
Cosmic Radiation Laboratory, the Institute of Physical and Chemical Research
Department of Physics, Tokyo University of Science
Department of Physics, University of Tokyo
出版者
宇宙航空研究開発機構
出版者（英）
Japan Aerospace Exploration Agency (JAXA)
雑誌名
宇宙航空研究開発機構特別資料:
雑誌名(英)
JAXA Special Publication: The Energetic Cosmos; from Suzaku to ASTRO-H
巻
JAXA-SP-09-008E
ページ
110 - 111
発行年
2010-02-26
会議概要（会議名, 開催地, 会期, 主催者等）（英）
The 3rd Suzaku international Conference "Energetic Cosmos : from Suzaku to ASTRO-H" (June 29-July 2, 2009. Grand Park Otaru Hotel), Otaru, Hokkaido Japan
抄録（英）
The Suzaku X-ray satellite observed the nearby spiral galaxy NGC 4258 for a total good exposure time of 100 ks. We present an analysis of the Suzaku XIS data, in which we confirm that the 0.5-2 keV spectra of the interstellar medium (ISM) are well-represented by a two-temperature model. The cool and hot ISM temperatures are 0.23 +/- 0.01 and 0.58 +/- 0.01 keV, respectively. Suzaku's excellent spectral sensitivity enables us to measure the metal abundances of O, Ne, Mg, Si and Fe of the ISM for the first time. The resultant abundance pattern of O, Mg, Si, and Fe is consistent with that of the new solar abundance table of Lodders (2003), rather than Anders and Grevesse (1989). This suggests that the metal enrichment processes of NGC 4258 and of our Galaxy are similar.
内容記述（英）
Meeting sponsors: The University of Tokyo, The Institute of Physical and Chemical Research, The Japan Society for the Promotion of Science
Suzaku Observation of the Metallicity in the Interstellar Medium of NGC 4258
64574041.pdf
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