Swift XRT/UVOT rapid follow-up of bright FRB 20211122A
ATel #15055; Aaron Tohuvavohu (U Toronto), Jamie Kennea (PSU), Phil Evans (U Leicester), James DeLaunay (U Alabama)
on 22 Nov 2021; 17:31 UT
Credential Certification: Aaron Tohuvavohu (a.tohuvavohu@mail.utoronto.ca)
Subjects: Radio, Optical, Ultra-Violet, X-ray, Transient, Fast Radio Burst
The Neil Gehrels Swift Observatory responded with its newly commissioned AutoToO autonomous repoint mode, to rapidly observe the bright CHIME FRB 20211122A (event #198595370 T0: 2021-11-22T05:42:17.806940), slewing and landing on target at T0+39 minutes.
The XRT and UVOT fields of view fully cover the 90% localization region (radius 3.5') reported by CHIME/FRB.
Observations continued for 2000 s of integrated exposure, with XRT taking data in Photon Counting (PC) mode and UVOT observing in event mode (11 ms timing) with the u filter.
No new or outbursting sources are found in the FRB's localization region, down to an average 3 sigma upper limit of 5e-3 ct s-1 (0.3-10 keV) and 21.3 AB mag in the u filter.
This research has made use of the CHIME/FRB VOEvent Service.
