X-ray spectral classification of supernova remnants in the Large Magellanic Cloud
X-ray spectral classification of supernova remnants in the Large Magellanic Cloud
复制标题
大麦哲伦星云中超新星遗迹的 X 射线光谱分类
DOI：
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发表时间：
1982
期刊：
影响因子：
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通讯作者：
J. Culhane
中科院分区：
文献类型：
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作者：
D. H. Clark;I. Tuohy;M. Dopita;D. Mathewson;K. Long;A. Szymkowiak;J. Culhane
爱因斯坦天文台的固态光谱仪用于测量大麦哲伦星云中六个著名超新星遗迹的0.6-4.5 keV X射线光谱，即N132D、N63A、N49、0525-66.0、N157B和0540-69.3。热发射是从前四个遗迹中检测到的，其性质与从年轻星系信噪比中观察到的类似。相比之下，N157B 和 0540-69.3 具有无特征的 X 射线光谱，可以通过幂律模型很好地描述。目前的数据支持来自 N157B 和 0540-69.3 的 X 射线的同步加速器起源，尽管后者考虑了替代发射机制。
The solid state spectrometer on the Einstein Observatory was used to measure the 0.6-4.5 keV X-ray spectra of six prominent supernova remnants in the Large Magellanic Cloud, namely, N132D, N63A, N49, 0525-66.0, N157B, and 0540-69.3. Thermal emission is detected from the first four remnants and is similar in nature to that observed from young galactic SNRs. In contrast, N157B and 0540-69.3 have featureless X-ray spectra which are well described by power-law models. The present data support a synchrotron origin for the X-rays from N157B and 0540-69.3, although an alternative emission mechanism is considered for the latter object.