X-Ray Emission from Supernova Remnants Observed in the ASCA Galactic Plane Survey
X-Ray Emission from Supernova Remnants Observed in the ASCA Galactic Plane Survey
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DOI：
10.1093/pasj/60.5.1143
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发表时间：
2008-05
影响因子：
2.3
通讯作者：
S. Yamauchi;M. Ueno;K. Koyama;A. Bamba
中科院分区：
文献类型：
--
作者：
S. Yamauchi;M. Ueno;K. Koyama;A. Bamba
本文介绍了在ASCA星系面巡天观测到的5颗星表超新星残骸（信噪比分别为G12.0 0.1、G346.6 0.2、G348.5+0.1、G348.7+0.3和G355.6 0.0）的x射线图像和光谱。G12.0 0.1、G348.5+0.1、G348.7+0.3和G355.6 0.0的x射线发射尺寸与其射电结构相当，而G346.6 0.2的x射线发射尺寸较小。所有snr的x射线光谱都被NH bbb10 cm的星际物质大量吸收。G355.6 0.0的光谱呈现出发射谱线，表明其x射线发射具有薄热等离子体起源，可以用双温薄热发射模型很好地表示。另一方面，在其他的光谱中没有发现明显的发射在线特征，光谱可以用薄热发射模型或幂律模型表示。
X-ray images and spectra of 5 cataloged supernova remnants (SNRs: G12.0 0.1, G346.6 0.2, G348.5+0.1, G348.7+0.3, and G355.6 0.0) observed in the ASCA galactic plane survey are presented. The sizes of X-ray emission from G12.0 0.1, G348.5+0.1, G348.7+0.3, and G355.6 0.0 are comparable to their radio structures, while that of G346.6 0.2 is smaller. The X-ray spectra of all the SNRs were heavily absorbed by interstellar matter with NH > 10 cm . The spectrum of G355.6 0.0 exhibited emission lines, indicating that the X-ray emission has a thin thermal plasma origin, and was well represented by a two-temperature thin thermal emission model. On the other hand, no clear emission-line features were found in the spectra of the others, and the spectra could be represented by either a thin thermal emission model or a power-law model.