Radio detection of SN 2024ggi
ATel #16616; Stuart Ryder (Macquarie University), Keiichi Maeda (Kyoto University), Poonam Chandra (NRAO), Rami Alsaberi (Western Sydney University), Rubina Kotak (University of Turku)
on 6 May 2024; 08:08 UT
Credential Certification: Stuart Ryder (Stuart.Ryder@mq.edu.au)
Subjects: Radio, Supernovae
Following up on earlier non-detections of the Type II SN 2024ggi in NGC 3621 (ATel #16612) at 1-26 GHz, we re-observed the source with the Australia Telescope Compact Array (ATCA) at 9.0 and 5.5 GHz on 2024 May 4.4-4.6 UT. SN 2024ggi was detected with flux densities of 0.10 +/- 0.03mJy at 5.5 GHz, and 0.12 +/- 0.05 mJy at 9.0 GHz. Adopting a host galaxy distance of 7 Mpc from the NASA Extragalactic Database (NED) this implies a 5.5 GHz luminosity 3 weeks after discovery of 6E+24 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.
