Investigation of the mode-switching phenomenon in pulsar B0329+54 through polarimetric analysis
Investigation of the mode-switching phenomenon in pulsar B0329+54 through polarimetric analysis
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DOI：
10.1093/mnras/stz020
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发表时间：
2019-01
影响因子：
4.8
通讯作者：
C. Brinkman;D. Mitra;J. Rankin
中科院分区：
文献类型：
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作者：
C. Brinkman;D. Mitra;J. Rankin
在脉冲星中，稳定的平均脉冲轮廓在脉冲星周期的时间尺度上改变为另一个稳定状态的轮廓模式切换现象仍然知之甚少。我们试图通过对PSR B0329+54的两种不同轮廓模式的偏振和几何结构的比较分析来了解双极型星如何进行轮廓模式切换。旋转矢量模型的极化行为和拟合参数在模式之间保持恒定，发射高度也保持恒定。这些相似之处支持了表面等离子体中电子对产生的模型，该模型将导致可用电子的变化，从而导致差分发射强度的变化。
The phenomenon of profile mode switching in pulsars, where the stable average pulse profile changes to another stable state on the timescale of a pulsar's period, remains poorly understood. We sought to understand how pulsars undergo profile mode switching through a comparative analysis of the polarization and geometry of the two different profile modes of PSR B0329+54. The polarization behavior and fitted parameters of the rotation-vector model remain constant between modes, and the emission height remains constant as well. These similarities lend support to a model of pair production in the surface plasma that would cause a change in the available electrons and therefore the differential emission intensity.