论文标题
PULSAR J1326 $ - $ 6700的模式切换
The Mode Switching in Pulsar J1326$-$6700
论文作者
论文摘要
我们通过分析从Parkes 64 M射电望远镜以1369 MHz的价格分析了Pulsar J1326 $ - 6700 $ 6700的模式切换的详细研究。在异常模式下，中央和尾随组件的发射变得极为弱。同时，领先的发射朝着较早的经度转移了几乎2°，并且在该位置上的位置通常不到一分钟。正常模式的平均通量密度几乎是异常模式的五倍。我们的数据表明，对于PSR J1326 $ - $ 6700，在正常模式下花费了85％的时间，而15％的时间处于异常模式。 Weibull分布可以很好地描述模式时标的固有分布，该分布在模式切换中呈现一定数量的内存。此外，在PULSAR J1326 $ -6700中的模式切换中已经确定了一个Quasiperiodicity。基于运动学效应的估计延迟发射高度表明，异常模式可能起源于高度高于正常模式。
We report on a detailed study of the mode switching in pulsar J1326$-$6700 by analyzing the data acquired from the Parkes 64 m radio telescope at 1369 MHz. During the abnormal mode, the emission at the central and trailing components becomes extremely weak. Meanwhile, the leading emission shifts toward earlier longitude by almost 2°, and remains in this position for typically less than a minute. The mean flux density of the normal mode is almost five times that of the abnormal mode. Our data show that, for PSR J1326$-$6700, 85% of the time was spent in the normal mode and 15% was in the abnormal mode. The intrinsic distributions of mode timescales can be well described by Weibull distributions, which present a certain amount of memory in mode switching. Furthermore, a quasiperiodicity has been identified in the mode switching in pulsar J1326$-$6700. The estimated delay emission heights based on the kinematical effects indicate that the abnormal mode may have originated from higher altitude than the normal mode.
