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A ROSAT OBSERVATION OF THE SUPERNOVA REMNANT KES 79

机译:超新星遗迹KES的卫星观测79

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摘要

Kes 79 was observed with the ROSAT PSPC and HRI. Some X-ray emission comes from a faint outer region, well correlated with the outer shell. Most emission is from a bright diffuse inner region where there are also bright radio filaments. The X-ray spectrum is fitted with a thermal model with temperature 1.3 keV. Variations in spectra from different regions are small. There is no X-ray evidence for an internal neutron star. Remnant characteristics are derived using a simple blast-wave model. The observed X-ray absorption is less than expected. It is possible that the remnant is closer than the published distance of 10 kpc.
机译:使用ROSAT PSPC和HRI观察到Kes 79。一些X射线的发射来自外部的微弱区域,与外壳之间的相关性很好。大多数发射来自明亮的扩散内部区域,在该区域中也有明亮的无线电灯丝。 X射线光谱符合温度为1.3 keV的热模型。来自不同区域的光谱变化很小。没有内部中子星的X射线证据。使用简单的爆炸波模型可以得出残余特征。观察到的X射线吸收小于预期。残留物可能比公布的10 kpc距离更近。

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