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arXiv 1206.3873astro-ph.HE
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可能对应于gamma-ray源2FGL J2056 .7+4939的亚弧秒射电和光学观测

Sub-arcsecond radio and optical observations of the likely counterpart to the gamma-ray source 2FGL J2056.7+4939

J. Martí, P. L. Luque-Escamilla, E. Sánchez-Ayaso, A. J. Muñoz-Arjonilla

摘要:

我们已经搜索和审查了所有多波长数据可用于该地区的伽玛射线源2FGL J2056.7+4939,以约束其可能的对应物在较低的能量。因此,只有一个点状的光学/红外源与平坦频谱的无线电发射被发现是一致的所有X射线和伽马射线的误差圆。它的结构在亚弧秒水平的无线电波长处勉强分辨。银河系外的场景似乎是这个物体最有可能的解释。

英文摘要:

We have searched and reviewed all multi- wavelength data available for the region towards the gamma-ray source 2FGL J2056.7+4939 in order to con- strain its possible counterpart at lower energies. As a result, only a point-like optical/infrared source with flat-spectrum radio emission is found to be consistent with all X-ray and gamma-ray error circles. Its struc- ture is marginally resolved at radio wavelengths at the sub-arcsecond level. An extragalactic scenario appears to be the most likely interpretation for this object.

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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