单个快速射电暴被定位到宇宙学距离上的大质量星系
高能天体物理现象
2019-06-28 v1 宇宙学与河外天体物理
摘要
快速射电暴（FRB）是来自遥远天文源的短暂射电辐射。已知部分 FRB 会重复爆发，但大多数为单次爆发。非重复 FRB 的观测定位精度此前不足以将其定位到单个宿主星系。我们报告了对单脉冲 FRB 180924 的干涉测量定位，其位置距离一个红移 0.3214 的明亮星系中心 4 kpc。该爆发未被观测到重复。该爆发及其宿主的性质与唯一另一个被精确定位的 FRB 源显著不同。沿视线方向的积分电子柱密度与星系际介质模型高度吻合，表明部分 FRB 是探测宇宙网重子成分的纯净探针。
引用
@article{arxiv.1906.11476,
title = {A single fast radio burst localized to a massive galaxy at cosmological distance},
author = {K. W. Bannister and A. T. Deller and C. Phillips and J. -P. Macquart and J. X. Prochaska and N. Tejos and S. D. Ryder and E. M. Sadler and R. M. Shannon and S. Simha and C. K. Day and M. McQuinn and F. O. North-Hickey and S. Bhandari and W. R. Arcus and V. N. Bennert and J. Burchett and M. Bouwhuis and R. Dodson and R. D. Ekers and W. Farah and C. Flynn and C. W. James and M. Kerr and E. Lenc and E. K. Mahony and J. O'Meara and S. Osłowski and H. Qiu and T. Treu and V. U and T. J. Bateman and D. C. -J. Bock and R. J. Bolton and A. Brown and J. D. Bunton and A. P. Chippendale and F. R. Cooray and T. Cornwell and N. Gupta and D. B. Hayman and M. Kesteven and B. S. Koribalski and A. MacLeod and N. M. McClure-Griffiths and S. Neuhold and R. P. Norris and M. A. Pilawa and R. -Y. Qiao and J. Reynolds and D. N. Roxby and T. W. Shimwell and M. A. Voronkov and C. D. Wilson},
journal= {arXiv preprint arXiv:1906.11476},
year = {2019}
}
备注
Published online in Science 27 June 2019