RIKEN
RIKEN
RIKEN
Nagoya University
Kyoto University
Nagoya University
Rutgers University
NASA/GSFC
Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS)(JAXA)
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
58 - 61
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 have discovered a three-dimensional onion-like metallicity structure in Tychoapos;s SNR using Suzaku, in such a way that iron is more concentrated in the remnant center than intermediate-mass elements (IMEs: Si, S, Ar, and Ca). This is achieved by measuring widths of the emission lines of those elements as a function of the angular distance from the center of the remnant. We interpret our results as representing Doppler broadening caused by a line-of-sight velocity dispersion of the line-emitting ions. Applying two Gaussian models (red- and blue-shifted components) to each broadened line, we determine the expansion velocities of the IMEs and Fe as approximately 4900 km s(exp -1) and approximately 3800 km s(exp -1), respectively. Combining our results with the projected image of the SNR, we successfully construct a three-dimensional onion-like structure of the SNR.
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
The Onion-like Metallicity Structure of Tycho's Supernova Remnant as Revealed by Doppler Broadened X-ray Emission Lines
64574022.pdf
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