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SkyMapper Follow-up observations of FRB 190806

ATel #13008; Seo-Won Chang (Australian National University / OzGrav), Christian Wolf (ANU/OzGrav), Christopher A. Onken (ANU), Lance Luvaul (ANU), Vivek Gupta (Swinburne University of Technology "SUT") and Chris Flynn (SUT)
on 9 Aug 2019; 01:39 UT
Credential Certification: Seo-Won Chang (seowon.chang@anu.edu.au)

Subjects: Optical, Transient, Fast Radio Burst

Referred to by ATel #: 13017

We perform optical follow-up observations of FRB 190806 (Gupta et al., ATel: #12995) with the 1.35m SkyMapper telescope located at Siding Spring Observatory in New South Wales, Australia (Keller et al. 2007). The first image was obtained at 16:46:21 UTC on 2019 August 7 about 23.6 hours after the burst, following a sequence of exposure blocks in the i and r filters. Each exposure was 100 seconds, which is the typical exposure of the SkyMapper Main Survey (DR2: Onken et al. 2019), to utilize the DR2 dataset as reference frames for the detection of optical transients. More than 90% of the localization area of the FRB was covered by four SkyMapper pointings (FoV: 2.4 x 2.3 square degrees), each of which was exposed at least twice. Images are complete to a depth of 20.5 mag in r-band and 20.0 mag in i-band (AB magnitude system).

We search for transient candidates with our Alert Science Data Pipeline (AlertSDP), but find no transients or variables within the UTMOST error region.

FRB190806 found at UTMOST