论文标题

FRB131104 Swift BAT数据重新审视:没有伽马射线的证据

FRB131104 Swift BAT data revisited: No evidence of a gamma-ray counterpart

论文作者

Sakamoto, T., Troja, E., Lien, A., Zhang, B., Cenko, S. B., Cunningham, V., Berger, E.

论文摘要

我们介绍了围绕FRB 131104的无线电检测的Swift Burst警报望远镜(BAT)数据进行的重新分析。Delaunay等人提供了伽马射线对应物的可能证据。但是,基于我们使用所有可用BAT数据的分析,在时间或图像域中均未发现明显的发射。我们将5〜Sigma Viturence上限为3.3 $ \ times $ 10 $^{ - 6} $ erg cm $^{ - 2} $和2.7 $ \ times $ 10 $^{ - 6} $ erg cm $^{ - 2} $(15-150 KEV),并带有300 s的集成时间,即与Simple-phote Specter-phote Spectectiment-niffency-nife-nife-phote Spectectiment-nived-nived-nived-0.2。我们的结果不支持该FRB与高能对应物的关联,这与越来越多的观察性证据一致,即大多数FRB与诸如伽马射线爆发等灾难性事件无关。

We present a re-analysis of the Swift Burst Alert Telescope (BAT) data around the radio detection of FRB 131104. Possible evidence of a gamma-ray counterpart was presented by DeLaunay et al. However, based on our analysis using all the available BAT data, no significant emission is found in either the temporal or the image domain. We place a 5~sigma fluence upper limit of 3.3 $\times$ 10$^{-6}$ erg cm$^{-2}$ and 2.7 $\times$ 10$^{-6}$ erg cm$^{-2}$ (15-150 keV) with an integration time of 300 s assuming a simple power-law spectrum with photon index of -1.2 and -2.0, respectively. Our result does not support the association of this FRB with a high-energy counterpart, in agreement with growing observational evidence that most FRBs are not associated to catastrophic events such as gamma-ray bursts.

扫码加入交流群

加入微信交流群

微信交流群二维码

扫码加入学术交流群,获取更多资源