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ASKAP radio limits on SN 2024abfo

ATel #16924; K. Rose (U. Sydney, CSIRO), S. Ryder (Macquarie U.), and L. Driessen (U. Sydney) on behalf of the VAST collaboration
on 25 Nov 2024; 22:05 UT
Credential Certification: Kovi Rose (kovirose@gmail.com)

Subjects: Radio, Supernovae, Transient

Following the early-time ATCA detection of SN 2024abfo (ATel #16920) we report the 5-sigma limits obtained with CSIRO's Australian SKA Pathfinder (ASKAP) as part of the Variables and Slow Transients (VAST; Murphy et al. 2021) survey. We performed forced fitting on the publicly-available ASKAP observations and measured the following limits at the supernova position:
Date [UTC] S_I [mJy]
2023 Jul 07.09 < 1.09
2023 Aug 31.84 < 1.20
2023 Oct 29.77 < 0.96
2023 Dec 26.56 < 1.36
2024 Mar 01.45 < 1.07
2024 Apr 26.21 < 1.13
2024 Jun 22.04 < 1.21
2024 Aug 21.90 < 1.09
2024 Oct 17.80 < 0.99
All observations were conducted at 888 MHz, with a bandwidth of 288 MHz and a typical integration time of 12 minutes. This scientific work uses data obtained from Inyarrimanha Ilgari Bundara / the CSIRO's Murchison Radio-astronomy Observatory. We acknowledge the Wajarri Yamaji People as the Traditional Owners and native title holders of the Observatory site. CSIRO's ASKAP radio telescope is part of the Australia Telescope National Facility (https://ror.org/05qajvd42). Operation of ASKAP is funded by the Australian Government with support from the National Collaborative Research Infrastructure Strategy. ASKAP uses the resources of the Pawsey Supercomputing Research Centre. Establishment of ASKAP, Inyarrimanha Ilgari Bundara, the CSIRO Murchison Radio-astronomy Observatory and the Pawsey Supercomputing Research Centre are initiatives of the Australian Government, with support from the Government of Western Australia and the Science and Industry Endowment Fund. Archived data can be obtained through the CSIRO ASKAP Science Data Archive, CASDA (http://data.csiro.au/).