标题： 高能脉冲星辐射的偏振：条纹风模型 显示英文标题

标题： Polarization of high-energy pulsar radiation in the striped wind model

摘要： 计算了条纹脉冲星风模型产生的脉冲同步辐射的斯托克斯参量，并将其与蟹状脉冲星的光学观测结果进行了比较。 我们假设风的发射主要来自一个薄的过渡层，在该层中主导的环向磁场反转其极性。 忽略了磁场的径向分量，但加入了一个小的经向分量。 由此产生的辐射是线性偏振的（斯托克斯 V=0）。 在脉冲外区域，电矢量位于脉冲星自转轴在天空投影的方向上。 这一特性是风模型所独有的，并且与数据很好地吻合。 其他性质，如偏振度降低以及脉冲内的偏振角的特征性摆动也被再现。 这些性质在风的洛伦兹因子、电子注入幂律指数和视线倾角的变化下在定性上没有受到影响。 显示英文摘要

摘要： The Stokes parameters of the pulsed synchrotron radiation produced in the striped pulsar wind model are computed and compared with optical observations of the Crab pulsar. We assume the main contribution to the wind emissivity comes from a thin transition layer where the dominant toroidal magnetic field reverses its polarity. The radial component of the field is neglected, but a small meridional component is added. The resulting radiation is linearly polarized (Stokes V=0). In the off-pulse region, the electric vector lies in the direction of the projection on the sky of the rotation axis of the pulsar. This property is unique to the wind model and in good agreement with the data. Other properties such as a reduced degree of polarization and a characteristic sweep of the polarization angle within the pulses are also reproduced. These properties are qualitatively unaffected by variations of the wind Lorentz factor, the electron injection power law index and the inclination of the line of sight.