标题： 银河超新星遗迹G12.0-0.1的X射线辐射 显示英文标题

标题： X-Ray Emission from the Galactic Supernova Remnant G12.0-0.1

摘要： 我们展示了围绕射电超新星遗迹（SNR）G12.0-0.1的Suzaku/XIS观测结果。未观测到显著扩展至或沿无线电外壳分布的弥散发射。相反，在G12.0-0.1内部或附近发现了两个紧凑的X射线源，即Suzaku J181205-1835和Suzaku J181210-1842。Suzaku J181205-1835位于G12.0-0.1无线电壳体的西北方向。X射线轮廓略微超出Suzaku望远镜的点扩散函数范围。X射线谱没有明显的线状结构，可以用幂律模型很好地描述，光子指数为2.2，吸收柱密度为N_{H}=4.9×10^{22} cm^{-2}。从吸收柱密度和Sigma-D关系分别估算出Suzaku J181205-1835和G12.0-0.1的距离，两者几乎相同。这些结果表明，Suzaku J181205-1835可能是与G12.0-0.1相关的脉冲星风星云候选体。根据其位置，Suzaku J181210-1842可能与G12.0-0.1无关。X射线轮廓表现为点源，谱线显示为薄热辐射，并伴有6.4、6.7和6.97 keV的Fe K线，类似于激变变星的特征。 显示英文摘要

摘要： We present results of the Suzaku/XIS observation around the radio supernova remnant (SNR) G12.0-0.1. No significant diffuse emission extending in or along the radio shell was observed. Instead two compact X-ray sources, Suzaku J181205-1835 and Suzaku J181210-1842, were found in or near G12.0-0.1. Suzaku J181205-1835 is located at the northwest of the radio shell of G12.0-0.1. The X-ray profile is slightly extended over the point spread function of the Suzaku telescope. The X-ray spectrum has no line-like structure and is well represented by a power-law model with a photon index of 2.2 and an absorption column of N_{H}=4.9x10^{22} cm^{-2}. The distances of Suzaku J181205-1835 and G12.0-0.1 are estimated from the absorption column and the Sigma-D relation, respectively, and are nearly the same with each other. These results suggest that Suzaku J181205-1835 is a candidate of a pulsar wind nebula associated with G12.0-0.1. From its location, Suzaku J181210-1842 would be unrelated object to G12.0-0.1. The X-ray profile is point-like and the spectrum is thin thermal emission with Fe K-lines at 6.4, 6.7, and 6.97 keV, similar to those of cataclysmic variables.