绿岸望远镜对100颗双星774兆赫的偏振观测
Polarization observations of 100 pulsars at 774 MHz by the Green Bank Telescope
摘要：
我们报告偏振观测的100个恒星为中心的774兆赫，使用绿岸望远镜，提出他们的偏振配置文件和偏振通量密度，并比较他们与以前的观察时，可能的。对于67个卫星，这是第一次进行这样的测量。在我们的样品中，8毫秒双星的偏振剖面显示出宽的剖面和平坦的位置-角度曲线。在某些双星的全部或部分平均脉冲轮廓中，观测到了强的线偏振，有时接近总强度的100%。一般来说，圆偏振非常弱，尽管在PSR J1920+2650的主导分量中观察到极强的圆偏振。从20多个雷达的核心和其他部件上检测到了圆偏振方向反转与脉冲相位的关系。在我们的数据中，在这个频率下，自旋下降的光度和线偏振百分比之间的任何关系都不明显。
英文摘要：
We report on polarimetric observations of 100 pulsars centered on 774 MHz, made using the Green Bank Telescope, presenting their polarization profiles and polarized flux densities and comparing them with previous observations when possible. For 67 pulsars, these are the first such measurements made. Polarization profiles of 8 millisecond pulsars in our sample show wide profiles and flat position-angle curves. Strong linear polarization, sometimes approaching 100% of the total intensity, has been detected in all or a part of the average pulse profiles of some pulsars. In general, circular polarization is very weak, although it is observed to be extremely strong in the leading component of PSR J1920+2650. Sense reversal of circular polarization as a function of pulse phase has been detected from both core and other components of more than 20 pulsars. Any relationship between the spin-down luminosity and the percentage of linear polarization is not evident in our data at this frequency.
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