论文标题
发现与候选超新星残留G189.6+3.3相关的重组等离子体与Suzaku
Discovery of recombining plasma associated with the candidate supernova remnant G189.6+3.3 with Suzaku
论文作者
论文摘要
我们介绍了候选超新星残留G189.6+3.3与Suzaku的X射线光谱分析的结果。首次在光谱中检测到来自高度离子NE，MG，SI和S的K壳线。此外，在2.5 keV附近清楚地看到了来自He样Si的辐射重组连续体（RRC）。 RRC的这种检测首次揭示了G189.6+3.3具有X射线发射重组等离子体（RP）。 0.6-10.0 KeV能带中提取的X射线光谱与由碰撞电离平衡等离子体组件（与星际介质相关联）和RP分量（与射流相关联）的模型非常合适。光谱特征表明，G189.6+3.3最有可能是带有RP的中年SNR。
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.
