论文标题

来自经典Nova Asassn-16MA的伽马射线脉动的证据

Evidence for Gamma-Ray Pulsations from the Classical Nova ASASSN-16ma

论文作者

Li, Kwan-Lok

论文摘要

我们在这里报告了从费米大面积的望远镜观察到古典Nova asassn-16MA的新结果,该观察在2016年爆发期间表现出544.84(7)秒的相干伽马射线搏动。考虑到独立试验的数量,证据的重要性是4.0 Sigma,4.0 Sigma,等价责任的概率为5.9e-5.9e-5。周期性在外观的4天内是稳定的,表明其起源于白矮人的旋转信号。鉴于最近显示了一些电击伽马射线的光曲线和伽马射线光曲线彼此密切相关,因此伽马射线搏动现象可能意味着相关的光脉冲存在,这将为这些极端的白色Dwarf Binaries提供详细的前世会,以进一步研究以后进行进一步研究。

We report here a new result extracted from the Fermi Large Area Telescope observation of the classical nova ASASSN-16ma that exhibits coherent gamma-ray pulsations at 544.84(7) seconds during its outburst in 2016. Considering the number of independent trials, the significance of the evidence is 4.0 sigma, equivalent to a false alarm probability of 5.9e-5. The periodicity was steady during the 4 days of its appearance, indicating its origin as the spinning signal of the white dwarf. Given that the optical and gamma-ray light curves of some shock-powered gamma-ray novae have been recently shown closely correlated to each other, the gamma-ray pulsation phenomenon likely implies an existence of the associated optical pulsations, which would provide detailed ephemerides for these extreme white dwarf binaries for further investigations in the near future.

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