The Detection of an Extremely Bright Fast Radio Burst in a Phased Array Feed Survey
The Detection of an Extremely Bright Fast Radio Burst in a Phased Array Feed Survey
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DOI：
10.3847/2041-8213/aa71ff
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发表时间：
2017-05
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影响因子：
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通讯作者：
K. Bannister;R. Shannon;J. Macquart;C. Flynn;P. Edwards;M. O’Neill;S. Osłowski;M. Bailes;B. Z
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文献类型：
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作者：
K. Bannister;R. Shannon;J. Macquart;C. Flynn;P. Edwards;M. O’Neill;S. Osłowski;M. Bailes;B. Z
我们报告了一个超亮快速射电暴（FRB）的检测，从一个温和的，3.4天的试点调查与澳大利亚平方公里阵列探路者。该调查是在一个广泛的领域苍蝇的眼睛配置使用相控阵馈电技术部署在阵列上，即时观察160 deg2的有效面积，并实现曝光总计13200 deg2小时。我们将FRB 170107的位置限制在一个大小为90%的区域内，其注量为58 ± 6 Jy ms。爆发的频谱在1400 MHz以上显示出一个尖锐的截止，这可能是由于闪烁或爆发的内在特征。这证实了FRB的超亮（Jy ms）群体的存在。
We report the detection of an ultra-bright fast radio burst (FRB) from a modest, 3.4-day pilot survey with the Australian Square Kilometre Array Pathfinder. The survey was conducted in a wide-field fly’s-eye configuration using the phased-array-feed technology deployed on the array to instantaneously observe an effective area of 160 deg2, and achieve an exposure totaling 13200 deg2 hr . We constrain the position of FRB 170107 to a region in size (90% containment) and its fluence to be 58 ± 6 Jy ms. The spectrum of the burst shows a sharp cutoff above 1400 MHz, which could be due to either scintillation or an intrinsic feature of the burst. This confirms the existence of an ultra-bright ( Jy ms) population of FRBs.