论文标题
超新星残留CTB 80的极化研究
A polarization study of the supernova remnant CTB 80
论文作者
论文摘要
我们根据加拿大银河平面调查的1420 MHz的图像对超新星残留的CTB 80进行了无线电极化研究，该研究是从effelsberg的2695 MHz进行的，来自银河系平面的Effelsberg调查，以及来自中国银河平面6厘米极化调查的4800 MHz。我们使用2695 MHz和4800 MHz的极化角度获得了旋转度量（RM）图，因为在这两个频率下极化百分比相似。 RM沿着托有Pulsar PSR B1951+32及其脉冲星风星的壳的一个壳的壳表现出从正值到负值的过渡。符号变化的原因尚不清楚。我们确定了部分壳结构，该结构在极化强度时明亮，但在总强度上较弱。该结构可能是CTB 80的一部分，也可以是与CTB 80无关的新超新星残留物的一部分。
We present a radio polarization study of the supernova remnant CTB 80 based on images at 1420 MHz from the Canadian Galactic plane survey, at 2695 MHz from the Effelsberg survey of the Galactic plane, and at 4800 MHz from the Sino-German 6cm polarization survey of the Galactic plane. We obtained a rotation measure (RM) map using polarization angles at 2695 MHz and 4800 MHz as the polarization percentages are similar at these two frequencies. RM exhibits a transition from positive values to negative values along one of the shells hosting the pulsar PSR B1951+32 and its pulsar wind nebula. The reason for the change of sign remains unclear. We identified a partial shell structure, which is bright in polarized intensity but weak in total intensity. This structure could be part of CTB 80 or part of a new supernova remnant unrelated to CTB 80.
