ASKAP detection of FRB 200430
ATel #13694; P. Kumar (Swinburne University of Technology, SUT), C. K. Day (SUT), R. M. Shannon (SUT), S. Bhandari (CSIRO), H. Qiu (University of Sydney) on behalf of the ASKAP-CRAFT collaboration.
on 1 May 2020; 12:03 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 200430, was detected with a reported signal to noise ratio of 16 in the incoherent sum of 26 antennas. The system was operating with a central frequency of 864.5 MHz, an observing bandwidth of 336 MHz, and a time resolution of 1.7 ms.
A preliminary localization was made using the multi beam approach described in Bannister et al. (2017, ApJL, 841,12). The properties of the burst are as follows:
Date: 2020-04-30.65959383
UTC: 15:49:48.907
RA (J2000): 15:19(1)
DEC (J2000): 12:20(14)
DM: 380.1(4) pc cm^-3
Fluence: 35(4) Jy ms
Quoted uncertainties in position and fluence are with 90% confidence.
The burst was detected at a Galactic latitude of 52.5 deg. and a Galactic longitude of 17.1 deg. Galactic dispersion measures in this direction are modelled to be 27 pc cm^-3 (Cordes & Lazio, arXiv:0207156) and 26 pc cm^-3 (Yao et al., 2017, ApJ, 835,29).
A plot of the dynamic spectrum of the burst co-added from 3 beams can be found here:
