论文标题
定期重复的快速无线电爆发：碎片盘的透明裂解？
Periodically-repeating fast radio bursts: Lense-Thirring precession of a debris disk?
论文作者
论文摘要
最近，报道了以$ p _ {\ rm frb} = 16.35 \ pm0.18 $ frb 180916.j0158+65的重复快速无线电爆发（FRB）。如何产生这种FRB的周期性仍然存在争议。在这封信中，基于杂物盘周围的年轻脉冲星的假设，我们试图诊断磁盘上磁盘上的透射性动力是否可以产生观察到的周期性。我们的计算表明，倾斜磁盘的晶状体效果可能导致16天的进步时间为$ 0.5-1.5 \ times10^{18}〜\ rm g \，s^{ - 1} $，脉冲的旋转时间为1-20毫秒的脉冲量和极低的$ vascous $ $ $ $ $ nuse。圆盘质量和脉冲星的磁场也被限制为$ \ sim10^{ - 3}〜\ rm m _ {\ odot} $，$ <2.5 \ times 10^{13}〜\ rm g $。在我们的模型中，一个具有正常磁场和毫秒的新出生的脉冲星将依次体验增生阶段，螺旋桨阶段，并且在当前阶段可见为强的无线电源。如此年轻的NS的旋转能量可以以400美元的价格提供观察到的无线电爆发光度。
Recently, repeating fast radio bursts (FRBs) with a period of $P_{\rm FRB}=16.35\pm0.18$ days from FRB 180916.J0158+65 had been reported. It still remains controversial how to give rise to such a periodicity of this FRB. In this Letter, based on an assumption of a young pulsar surrounding by a debris disk, we attempt to diagnose whether the Lense-Thirring precession of the disk on the emitter can produce the observed periodicity. Our calculations indicate that the Lense-Thirring effect of a tilted disk can result in a precession period of 16 days for a mass inflow rate of $0.5-1.5\times10^{18}~\rm g\,s^{-1}$, a spin period of 1-20 ms of the pulsar, and an extremely low viscous parameter $α=10^{-8}$ in the disk. The disk mass and the magnetic field of the pulsar are also constrained to be $\sim10^{-3}~\rm M_{\odot}$ and $< 2.5\times 10^{13}~\rm G$. In our model, a new born pulsar with normal magnetic field and millisecond period would successively experience accretion phase, propeller phase, and is visible as a strong radio source in the current stage. The rotational energy of such a young NS can provide the observed radio bursting luminosity for $400$ years.
