Chiral anomalous processes in magnetospheres of pulsars and black holes
Chiral anomalous processes in magnetospheres of pulsars and black holes
复制标题
脉冲星和黑洞磁层中的手性异常过程
DOI：
10.1140/epjc/s10052-022-10604-6
复制
发表时间：
2022
期刊：
影响因子：
--
通讯作者：
Shovkovy, Igor A.
中科院分区：
文献类型：
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作者：
Gorbar, Eduard V.;Shovkovy, Igor A.
我们提出在脉冲星和黑洞磁层的缝隙区域可以产生手性不对称等离子体。我们发现，对于位于活动星系核中的超大质量黑洞，手征电荷密度和手征化学势都很小，不太可能有任何可观察到的影响。相比之下，在磁星的磁层中产生的手性不对称性可能是很大的。它可以触发手性等离子体不稳定性，进而导致磁星中可观察到的现象。特别是，这种不稳定性应该在从无线电到近红外的宽频率窗口内触发圆极化电磁辐射。因此，产生的手性电荷有可能影响快速射电爆发的某些特征。
We propose that chirally asymmetric plasma can be produced in the gap regions of the magnetospheres of pulsars and black holes. We show that, in the case of supermassive black holes situated in active galactic nuclei, the chiral charge density and the chiral chemical potential are very small and unlikely to have any observable effects. In contrast, the chiral asymmetry produced in the magnetospheres of magnetars can be substantial. It can trigger the chiral plasma instability that, in turn, can lead to observable phenomena in magnetars. In particular, the instability should trigger circularly polarized electromagnetic radiation in a wide window of frequencies, spanning from radio to near-infrared. As such, the produced chiral charge has the potential to affect some features of fast radio bursts.