标题： |V|: 对射电脉冲星圆偏振的新见解 显示英文标题

标题： |V|: New insight into the circular polarization of radio pulsars

摘要： 我们研究了来自九个明亮北部脉冲星的单脉冲，以探讨圆偏振（V）的行为。观测是在1.41 GHz和4.85 GHz使用Effelsberg 100米射电望远镜进行的，在352 MHz使用Westerbork射电望远镜进行的。 首次，我们展示了单脉冲绝对圆偏振|V|的平均轮廓。 我们证明了|V|的平均轮廓是区分单脉冲中显示低V的脉冲分量和显示高V（无论哪种手性）的分量之间的特征，尽管这两种情况导致均值较低。 我们还表明|V|的平均轮廓在频率上几乎保持恒定，这并不普遍适用于V，使我们得出结论|V|是脉冲星辐射问题中的关键量。 显示英文摘要

摘要： We present a study of single pulses from nine bright northern pulsars to investigate the behaviour of circular polarisation, V. The observations were conducted with the Effelsberg 100-m radio telescope at 1.41 GHz and 4.85 GHz and the Westerbork radio telescope at 352 MHz. For the first time, we present the average profile of the absolute circular polarisation |V| in the single pulses. We demonstrate that the average profile of |V| is the distinguishing feature between pulse components that exhibit low V in the single pulses and components that exhibit high V of either handedness, despite both cases resulting in a low mean. We also show that the |V| average profile remains virtually constant with frequency, which is not generally the case for V, leading us to the conclusion that |V| is a key quantity in the pulsar emission problem.