Suzaku discovery of twin thermal plasma from the Tornado nebula

Makoto Sawada, Takeshi Go Tsuru, Katsuji Koyama, Tomoharu Oka

研究成果: Article査読

4 被引用数 (Scopus)

抄録

The Tornado nebula (G357.7-0.1) is a mysterious radio source with a bright "head" and faint "tail" located in the direction of the Galactic center (GC) region. We here report on the discovery of two diffuse X-ray sources at the head and tail of Tornado with the Suzaku satellite. We found emission lines from highly ionized atoms in the two sources. The spectra have been reproduced by an optically thin thermal plasma with a common temperature of 0.6-0.7 keV. The interstellar absorption (NH) of these sources are the same, and are slightly larger than that of the GC distance. Since the estimated distance using the NH value is consistent with radio observations of Tornado, these X-ray sources are likely to be associated with the Tornado nebula. The twin-plasma morphology at both ends of Tornado suggests that the system is a bipolar/outflow source.

本文言語English
ページ(範囲)S849-S855
ジャーナルPublications of the Astronomical Society of Japan
63
SPEC. ISSUE 3
DOI
出版ステータスPublished - 2011 11 25

ASJC Scopus subject areas

  • 天文学と天体物理学
  • 宇宙惑星科学

フィンガープリント

「Suzaku discovery of twin thermal plasma from the Tornado nebula」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル