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arXiv 2007.03226astro-ph.HE
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发现与候选超新星遗迹G189 .6+3.3有关的与朱雀的重组等离子体

Discovery of recombining plasma associated with the candidate supernova remnant G189.6+3.3 with Suzaku

Shigeo Yamauchi, Moe Oya, Kumiko K. Nobukawa, Thomas G. Pannuti

摘要:

本文介绍了用朱雀星对候选超新星遗迹G189.6+3.3的东北区进行X射线光谱分析的结果。K壳线从高电离的Ne,Mg,Si和S的光谱中首次检测到。此外,在2.5 keV附近可以清楚地看到类氦硅的辐射复合连续谱(RRC)。RRC的检测首次揭示了G189.6+3.3拥有X射线发射的重组等离子体(RP)。在0.6-10.0 keV的能量带中提取的X射线光谱很好地拟合由碰撞电离平衡等离子体成分(与星际介质)和RP成分(与喷出物)组成的模型。光谱特征表明,G189.6+3.3最有可能是一个中年信噪比与RP。

英文摘要:

We present the results of an X-ray spectral analysis of the northeast region of the candidate supernova remnant G189.6+3.3 with Suzaku. K-shell lines from highly ionized Ne, Mg, Si, and S were detected in the spectrum for the first time. In addition, a radiative recombining continuum (RRC) from He-like Si was clearly seen near 2.5 keV. This detection of an RRC reveals for the first time that G189.6+3.3 possesses an X-ray-emitting recombining plasma (RP). The extracted X-ray spectrum in the 0.6-10.0 keV energy band is well fitted with a model consisting of a collisional ionization equilibrium plasma component (associated with the interstellar medium) and an RP component (associated with the ejecta). The spectral feature shows that G189.6+3.3 is most likely to be a middle-aged SNR with an RP.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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