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arXiv 1306.5619astro-ph.HE
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超新星遗迹G296 .5+10.0和G166 .0+4.3区域中Gamma-Ray发射的检测

Detection of Gamma-Ray Emission in the Region of the Supernova Remnants G296.5+10.0 and G166.0+4.3

Miguel Araya

摘要:

本文分析了费米伽马射线空间望远镜上的大面积望远镜在超新星遗迹G296.5+10.0(PKS 1209-51/52)和G166.0+4.3(VRO 42.05.01)区域52个月的累积观测资料。GeV的排放检测符合5西格玛和11西格玛水平以上的背景,分别为最佳拟合的光谱和空间的情况下,源的位置。源的伽马射线谱可以用能量的幂律来描述。G166.0+4.3显示了一个软GeV谱,而G296.5+10.0是平坦的(在“nu-Fnu”表示中)。的伽玛射线发射源的起源进行了探讨。轻子和强子机制都可以解释G296.5+10.0的高能发射,而轻子机制更适合G166.0+4.3。

英文摘要:

52 months of accumulated observations by the Large Area Telescope onboard the Fermi Gamma-ray Space Telescope in the region of the supernova remnants G296.5+10.0 (PKS 1209-51/52) and G166.0+4.3 (VRO 42.05.01) are analyzed. GeV emission is detected coincident with the position of the sources at the 5-sigma and 11-sigma levels above the background, respectively, for the best-fit spectral and spatial scenarios. The gamma-ray spectrum of the sources can be described with a power-law in energy. G166.0+4.3 shows a soft GeV spectrum while that of G296.5+10.0 is flat (in the "nu-Fnu" representation). The origin of the gamma-ray emission from the sources is explored. Both leptonic and hadronic mechanisms can account for the high-energy emission from G296.5+10.0, while a leptonic scenario is preferred for G166.0+4.3.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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