Detection of Highly-Ionized Carbon and Nitrogen Emission Lines from the Cygnus Loop Supernova Remnant with the Suzaku Observatory
Detection of Highly-Ionized Carbon and Nitrogen Emission Lines from the Cygnus Loop Supernova Remnant with the Suzaku Observatory
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DOI：
10.1093/pasj/59.sp1.s163
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发表时间：
2007-01
影响因子：
2.3
通讯作者：
E. Miyata;S. Katsuda;H. Tsunemi;J. Hughes;M. Kokubun;F. Porter
中科院分区：
文献类型：
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作者：
E. Miyata;S. Katsuda;H. Tsunemi;J. Hughes;M. Kokubun;F. Porter
我们展示了在天鹅座环超新星遗迹东北边缘进行朱雀观测的结果。朱雀 X 射线 CCD 相机的高检测效率和高光谱分辨率使我们能够首次检测到来自天鹅环的高电离 C 和 N 发射线。我们对数据集进行了环形光谱分析，并研究了沿径向的等离子体结构。我们的数据通过具有不同电子温度值的二元非平衡电离模型得到了很好的表征。 C 到 Fe 的丰度通常都会消耗到 0.1 个太阳，甚至氖也是如此。 O 的相对丰度与太阳值大致一致。
We present the results of a Suzaku observation at the northeastern limb of the Cygnus Loop supernova remnant. The high detection efficiency together with the high spectral resolution of the Suzaku X-ray CCD cameras enables us to detect highly-ionized C and N emission lines from the Cygnus Loop for the first time. We performed an annular spectral analysis to our data set and investigated the plasma structure along the radial direction. Our data are well characterized by a two-component non-equilibrium ionization model with different values of electron temperature. Abundances of C to Fe are all depleted to typically 0.1 solar, even for Ne. Relative abundances to O are roughly consistent with solar values.