在相控阵馈源巡天中探测到一个极亮的快速射电暴
高能天体物理现象
2017-05-31 v2
摘要
我们报告了在澳大利亚平方千米阵探路者(ASKAP)进行的一次为期 3.4 天的适度试点巡天中，探测到一个超亮快速射电暴(FRB)。该巡天采用宽视场复眼配置，利用部署在阵列上的相控阵馈源技术，瞬时观测有效面积达 160 平方度，总曝光量达 13200 平方度·小时。我们将 FRB 170107 的位置限定在一个 8'×8' 的区域(90% 置信区间)，其流量密度为 58±6 Jy ms。该暴的频谱在 1400 MHz 以上显示出急剧的截断，这可能是由闪烁引起，也可能是该暴的内禀特征。这证实了超亮(>20 Jy ms)FRB 群体的存在。
引用
@article{arxiv.1705.07581,
title = {The detection of an extremely bright fast radio burst in a phased array feed survey},
author = {Keith Bannister and Ryan Shannon and Jean-Pierre Macquart and Chris Flynn and Philip Edwards and Morgan O'Neill and Stefan Osłowski and Matthew Bailes and Barak Zackay and Nathan Clarke and Larry D'Addario and Richard Dodson and Peter Hall and Andrew Jameson and Dayton Jones and Robert Navarro and Joseph Trinh and James Allison and Craig Anderson and Martin Bell and Aaron Chippendale and Jordan Collier and George Heald and Ian Heywood and Aidan Hotan and Karen Lee-Waddell and Juan Madrid and Joshua Marvil and David McConnell and Attila Popping and Maxim Voronkov and Matthew Whiting and Graham Allen and Douglas Bock and David Brodrick and Francis Cooray and David DeBoer and Philip Diamond and Ron Ekers and Russell Gough and Grant Hampson and Lisa Harvey-Smith and Stuart Hay and Douglas Hayman and Carole Jackson and Simon Johnston and Baerbel Koribalski and Naomi McClure-Griffiths and Peter Mirtschin and Alan Ng and Ray Norris and Sarah Pearce and Chris Phillips and Daniel Roxby and Euan Robert Troup and Tobias Westmeier},
journal= {arXiv preprint arXiv:1705.07581},
year = {2017}
}
备注
8 pages, 4 figures, accepted in ApJ letters. Version 2: Fixed galactic coordinates in Table 2