1. A Fast Radio Burst discovered in FAST drift scan survey
- Author
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Zhu, Weiwei, Li, Di, Luo, Rui, Miao, Chenchen, Zhang, Bing, Spitler, Laura, Lorimer, Duncan, Kramer, Michael, Champion, David, Yue, Youling, Cameron, Andrew, Cruces, Marilyn, Duan, Ran, Feng, Yi, Han, Jun, Hobbs, George, Niu, Chenhui, Niu, Jiarui, Pan, Zhichen, Qian, Lei, Shi, Dai, Tang, Ningyu, Wang, Pei, Wang, Hongfeng, Yuan, Mao, Zhang, Lei, Zhang, Xinxin, Cao, Shuyun, Feng, Li, Gan, Hengqian, Gao, Long, Gu, Xuedong, Guo, Minglei, Hao, Qiaoli, Huang, Lin, Huang, Menglin, Jiang, Peng, Jin, Chengjin, Li, Hui, Li, Qi, Li, Qisheng, Liu, Hongfei, Pan, Gaofeng, Peng, Bo, Qian, Hui, Shi, Xiangwei, Song, Jinyuo, Song, Liqiang, Sun, Caihong, Sun, Jinghai, Wang, Hong, Wang, Qiming, Wang, Yi, Xie, Xiaoyao, Yan, Jun, Yang, Li, Yang, Shimo, Yao, Rui, Yu, Dongjun, Yu, Jinglong, Zhang, Chengmin, Zhang, Haiyan, Zhang, Shuxin, Zheng, Xiaonian, Zhou, Aiying, Zhu, Boqin, Zhu, Lichun, Zhu, Ming, Zhu, Wenbai, Zhu, Yan, Zhu, Weiwei, Li, Di, Luo, Rui, Miao, Chenchen, Zhang, Bing, Spitler, Laura, Lorimer, Duncan, Kramer, Michael, Champion, David, Yue, Youling, Cameron, Andrew, Cruces, Marilyn, Duan, Ran, Feng, Yi, Han, Jun, Hobbs, George, Niu, Chenhui, Niu, Jiarui, Pan, Zhichen, Qian, Lei, Shi, Dai, Tang, Ningyu, Wang, Pei, Wang, Hongfeng, Yuan, Mao, Zhang, Lei, Zhang, Xinxin, Cao, Shuyun, Feng, Li, Gan, Hengqian, Gao, Long, Gu, Xuedong, Guo, Minglei, Hao, Qiaoli, Huang, Lin, Huang, Menglin, Jiang, Peng, Jin, Chengjin, Li, Hui, Li, Qi, Li, Qisheng, Liu, Hongfei, Pan, Gaofeng, Peng, Bo, Qian, Hui, Shi, Xiangwei, Song, Jinyuo, Song, Liqiang, Sun, Caihong, Sun, Jinghai, Wang, Hong, Wang, Qiming, Wang, Yi, Xie, Xiaoyao, Yan, Jun, Yang, Li, Yang, Shimo, Yao, Rui, Yu, Dongjun, Yu, Jinglong, Zhang, Chengmin, Zhang, Haiyan, Zhang, Shuxin, Zheng, Xiaonian, Zhou, Aiying, Zhu, Boqin, Zhu, Lichun, Zhu, Ming, Zhu, Wenbai, and Zhu, Yan
- Abstract
We report the discovery of a highly dispersed fast radio burst, FRB~181123, from an analysis of $\sim$1500~hr of drift-scan survey data taken using the Five-hundred-meter Aperture Spherical radio Telescope (FAST). The pulse has three distinct emission components, which vary with frequency across our 1.0--1.5~GHz observing band. We measure the peak flux density to be $>0.065$~Jy and the corresponding fluence $>0.2$~Jy~ms. Based on the observed dispersion measure of 1812~cm$^{-3}$~pc, we infer a redshift of $\sim 1.9$. From this, we estimate the peak luminosity and isotropic energy to be $\lesssim 2\times10^{43}$~erg~s$^{-1}$ and $\lesssim 2\times10^{40}$~erg, respectively. With only one FRB from the survey detected so far, our constraints on the event rate are limited. We derive a 95\% confidence lower limit for the event rate of 900 FRBs per day for FRBs with fluences $>0.025$~Jy~ms. We performed follow-up observations of the source with FAST for four hours and have not found a repeated burst. We discuss the implications of this discovery for our understanding of the physical mechanisms of FRBs., Comment: 7 pages, 3 figures, accepted for publication in ApJL
- Published
- 2020
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