ASKAP detection of FRB 191001
ATel #13166; R. M. Shannon (Swinburne University of Technology, SUT), P. Kumar (SUT), S. Bhandari (CSIRO), J.-P. Macquart (ICRAR-Curtin University) on behalf of the ASKAP-CRAFT collaboration.
on 5 Oct 2019; 03:11 UT
Credential Certification: Ryan Shannon (rms72@cornell.edu)
Subjects: Radio, Fast Radio Burst
We report the detection of a Fast Radio Burst (FRB) with the Australian Square Kilometre Array Pathfinder (ASKAP), as part of the Commensal Real Time Fast Transient (CRAFT) survey science project. The burst, FRB 191001, was detected with a reported signal to noise ratio of 62 in the incoherent sum of 30 antennas. The system was operating with a central frequency of 920.5 MHz, observing bandwidth of 336 MHz, and time resolution of 1.7 ms.
A preliminary localization was conducted using the multi-beam approach described in Bannister et al. (2017, ApJL, 841, 12). The properties of the burst are as follows:
Date: 2019-10-01.7052774
UTC: 16:55:35.97081
RA (J2000): 21:32(3)
DEC (J2000): -54:40(20)
DM: 506.92(4) pc cm^-3
Fluence: 143(15) Jy ms
Quoted uncertainties are with 90% confidence.
The burst was detected at a Galactic latitude of -44.8 and a Galactic longitude of 341.3. Galactic dispersion measures in this direction are modelled to be 44 pc cm^-3 (Cordes & Lazio, arXiv:0207156) and 31 pc cm^-3 (Yao et al., 2017, ApJ, 835, 29).
A plot of the dynamic spectrum of the burst can be found here.
