Department of Earth and Space Science, Graduate School of Science, Osaka University
Department of Physics, Graduate School of Science, Kyoto University
Department of Physics, Graduate School of Science, Kyoto University
Department of Physics, Graduate School of Science, Kyoto University
Department of Physics, Graduate School of Science, Kyoto University
Department of Physics, Rikkyo University
Department of Physics, Faculty of Science, Nara Women's University
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
114 - 115
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）
We report on the results of the Suzaku observation in the Sgr C region, vicinity of the Galactic Center where there are giant MCs. We detected four diffuse clumps with strong line emission at 6.4 keV, Kalpha from neutral or low-ionized Fe. The X-ray spectra of the two bright clumps, exhibit strong Kalpha line from FeI with large equivalent widths (EWs) of 2.0 - 2.2 keV and clear Kbeta of FeI. The GCDX in the Sgr C region is composed of the 6.4 keV- and 6.7 keV-associated components. These are phenomenologically decomposed by taking relations between EWs of the 6.4 keV and 6.7 keV lines. Then the former EWs against the associated continuum in the bright clump regions are estimated to be 2.4(sup +2.3)(sub -0.7) keV. Since the two different approaches give similar large EWs of 2 keV, we strongly suggest that the 6.4 keV clumps in the Sgr C region are due to X-ray reflection/fluorescence (the X-ray reflection nebulae).
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
X-Ray Reflection Nebulae with Large Equivalent Widths of Neutral Iron K-alpha Line in the Sgr C Region
64574043.pdf
(236KB)
