论文标题

观察超浮肿的超新星和长伽玛射线爆发是重复快速无线电爆发的潜在出生地

Observing superluminous supernovae and long gamma ray bursts as potential birthplaces of repeating fast radio bursts

论文作者

Hilmarsson, G. H., Spitler, L. G., Keane, E. F., Athanasiadis, T. M., Barr, E., Cruces, M., Deng, X., Heyminck, S., Karuppusamy, R., Kramer, M., Sathyanarayanan, S. P., Krishnan, V. Ventakraman, Wieching, G., Wu, J., Wucknitz, O.

论文摘要

已经提出,已提议将超新星(SLSNE)和长γ射线爆发(LGRB)作为重复快速无线电爆发(FRB)的祖细胞。在这种情况下,爆发源于年轻磁铁与其周围超新星残留物(SNR)之间的相互作用。这样的模型可以解释FRB121102的重复,显然是非差异的性质,该性质似乎显示出静止和活跃的相位。通过Weibull分布更好地解释了这种爆发行为,其中包括用于聚类的参数化。我们观察到10个SLSNE/LGRB 63小时,寻找使用Effelsberg-100 m射电望远镜重复FRB,但尚未检测到任何突发。我们将FRB121102的爆发速率扩展到居住在每个观察到的目标的类似于FRB121102的源,并将此速率与我们的上部爆发速率限制在源基础上进行比较。通过采用0.6的基准横梁分数,我们获得了99.99 \%和83.4 \%的概率,至少有一个概率,至少有一半的观察到的来源分别向我们发光。我们的SLSN目标之一PTF10HGI与持续的无线电源一致,使其成为FRB121102的类似物。我们使用Effelsberg-100〜m和Parkes-64〜M射电望远镜对此来源进行了进一步的观察。假设PTF10HGI包含一个类似FRB121102的来源,则在观察过程中未检测到Weibull分布的任何突发的概率分别为Effelsberg和Parkes的14 \%和16 \%。最后,我们表明对许多简短观察结果的调查增加了Weibull分布式爆发活动的来源的突发检测概率。

Superluminous supernovae (SLSNe) and long gamma ray bursts (LGRBs) have been proposed as progenitors of repeating Fast Radio Bursts (FRBs). In this scenario, bursts originate from the interaction between a young magnetar and its surrounding supernova remnant (SNR). Such a model could explain the repeating, apparently non-Poissonian nature of FRB121102, which appears to display quiescent and active phases. This bursting behaviour is better explained with a Weibull distribution, which includes parametrisation for clustering. We observed 10 SLSNe/LGRBs for 63 hours, looking for repeating FRBs with the Effelsberg-100 m radio telescope, but have not detected any bursts. We scale the burst rate of FRB121102 to an FRB121102-like source inhabiting each of our observed targets, and compare this rate to our upper burst rate limit on a source by source basis. By adopting a fiducial beaming fraction of 0.6, we obtain 99.99\% and 83.4\% probabilities that at least one, and at least half of our observed sources are beamed towards us respectively. One of our SLSN targets, PTF10hgi, is coincident with a persistent radio source, making it a possible analogue to FRB121102. We performed further observations on this source using the Effelsberg-100~m and Parkes-64~m radio telescopes. Assuming that PTF10hgi contains an FRB121102-like source, the probabilities of not detecting any bursts from a Weibull distribution during our observations are 14\% and 16\% for Effelsberg and Parkes respectively. We conclude by showing that a survey of many short observations increases burst detection probability for a source with Weibull distributed bursting activity.

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