论文标题

星系郊区的夸克·诺瓦(Quark-Novae):快速无线电爆发现象的解释

Quark-Novae in the outskirts of galaxies: An explanation of the Fast Radio Burst phenomenon

论文作者

Ouyed, Rachid, Leahy, Denis, Koning, Nico

论文摘要

我们表明,经历夸克 - 诺瓦相的星系和星系簇中的旧孤立的中子星(QN:向夸克恒星的爆炸性过渡)可能是FRB的来源。超偏见QN弹出的数百万片段中的每一个都提供了一种无碰撞的等离子体,环境培养基(Galactic/Halo,Group/Group/cluster群集中培养基)充当相对论的等离子体束。 Buneman和Weibel的不稳定性,由片段中的梁依次诱导,在GHz频率下产生粒子束和观察到的相干发射,并在JY MS范围内相应的通量。持续时间,频率漂移和速率与观察到的FRB的特性一致。重复序列(在数分钟到几个月的时间尺度上)是由于看到每个片段在不同的方向上看到多个片段,并在不同的时间出现。单个(不重复)FRB,仅在原发性片段发射在检测器的敏感性之内时就会发生。 FRB 121102(其活动年)和FRB 180916.J0158+65(其16天的时间)的关键特性被回收。 SGR 1935+2154和FRB 200428之间的空间和时间重合在我们的模型中找到了一种解释。我们给出可测试的预测。

We show that old isolated neutron stars in groups and clusters of galaxies experiencing a Quark-Nova phase (QN: an explosive transition to a quark star) may be the source of FRBs. Each of the millions of fragments of the ultra-relativistic QN ejecta provides a collisionless plasma for which the ambient medium (galactic/halo, the intra-group/intra-cluster medium) acts as a relativistic plasma beam. The Buneman and the Weibel instabilities, successively induced by the beam in the fragment, generate particle bunching and observed coherent emission at GHz frequency with a corresponding fluence in the Jy ms range. The duration, frequency drift and the rate are in agreement with observed properties of FRBs. Repeats (on timescales of minutes to months) are due to seeing multiple fragments each beaming at a different direction and coming in at different times. Single (non-repeating) FRBs, occur when only emission from the primary fragment is within the detector's sensitivity. Key properties of FRB 121102 (its years of activity) and of FRB 180916.J0158+65 (its 16 day period) are recovered. The spatial and temporal coincidence between SGR 1935+2154 and FRB 200428 finds an explanation in our model. We give testable predictions.

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