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首页> 外文会议>The energetic cosmos : from Suzaku to ASTRO-H >Suzaku Observation of the Diffuse X-Ray Emission from the Open Cluster Westerlund 2: a Hypernova Remnant?
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Suzaku Observation of the Diffuse X-Ray Emission from the Open Cluster Westerlund 2: a Hypernova Remnant?

机译：朱雀对开放星团Westerlund 2的X射线漫射观测：超新星遗迹？

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摘要

We present the analysis of Suzaku observations of the young open cluster Westerlund 2, which is filled with diffuse X-ray emission. We found that the emission consists of three thermal components or two thermal and one non-thermal components. The upper limit of the energy flux of the non-thermal component is smaller than that in the TeV band observed with H.E.S:S. This may indicate that active particle acceleration has stopped in this cluster, and that the accelerated electrons have already cooled. The gamma-ray emission observed with H.E.S.S. is likely to come from high-energy protons, which hardly cool in contrast with electrons. Metal abundances of the diffuse X-ray gas may indicate the explosion of a massive star in the past. The details of this study are presented in Fujita et al. (2009a).
机译：我们目前对年轻的开放星团Westerlund 2的Suzaku观测进行分析，该星团充满了弥漫的X射线发射。我们发现排放物包括三个热成分或两个热成分和一个非热成分。非热成分的能量通量的上限小于用H.E.S：S观察到的TeV波段的通量的上限。这可能表明该粒子团中的活动粒子加速已经停止，并且加速的电子已经冷却。用H.E.S.S.观察到的伽马射线发射可能来自高能质子，与电子相比，它几乎不冷却。扩散的X射线气体中的金属丰度可能表明过去有大质量恒星爆炸。这项研究的细节在Fujita等人的文章中有介绍。 （2009a）。

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