Radio detection of SN 2024abfo

ATel #16920; Kovi Rose (University of Sydney, CSIRO), Stuart Ryder (Macquarie University), Keiichi Maeda (Kyoto University), Poonam Chandra (NRAO)
on 25 Nov 2024; 11:26 UT
Credential Certification: Kovi Rose (kovirose@gmail.com)

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The young Type II supernova SN 2022abfo (ATLAS24qew; TNS Astronomical Transient Report No. 232632) in NGC 1493, has been observed with the Australia Telescope Compact Array (ATCA) at 5.5 and 9.0 GHz on 21 Nov 2024 17:00-20:50 UT. SN 2024abfo was detected at 9.0 GHz with a flux density of 0.36 +/- 0.03 mJy, but not at 5.5 GHz to a 3-sigma upper limit of 0.06 mJy, suggesting the source is still in the early phase of evolution. Adopting a host galaxy distance of 11 Mpc from the NASA Extragalactic Database (NED) this implies a 9.0 GHz luminosity a week after discovery of 5.2E+25 erg/sec/Hz. We would like to extend our thanks to the ATCA staff for enabling these observations. The ATCA is part of the Australia Telescope National Facility which is funded by the Commonwealth of Australia for operation as a National Facility managed by CSIRO. We acknowledge the Gomeroi people as the traditional owners of the Observatory site.