Radio Observations of SN 2023gfo
ATel #16022; S. D. Ryder (Macquarie University), R. Z. E. Alsaberi (Western Sydney University), G. Anderson (ICRAR/Curtin University), M. D. Filipovic (Western Sydney University), R. Kotak (University of Turku), E. Kundu (Michigan State University), K. Maeda (Kyoto University), L. Marnoch (Macquarie University), M. Renaud (LUPM, CNRS/IN2P3), C. Stockdale (Marquette University)
on 29 Apr 2023; 02:44 UT
Credential Certification: Stuart Ryder (Stuart.Ryder@mq.edu.au)
Subjects: Radio, Supernovae
The young Type II supernova SN 2023gfo (=ATLAS23ioa; TNS AstroNotes 2023-92 and 2023-95) in NGC 4995 has been observed with the Australia Telescope Compact Array (ATCA) at 5.5 and 9.0 GHz on 26 April 2023 09:40-12:50 UT. No radio emission was detected to 3-sigma upper limits on the flux density of 0.06 mJy and 0.05 mJy at 5.5 GHz and 9.0 GHz, respectively. Adopting a host galaxy distance of 26 Mpc from NED this implies an upper limit on the 5.5 GHz luminosity of 4.9E+25 erg/sec/Hz. We would like to extend our thanks to the ATCA staff for enabling these observations. The Australia Telescope Compact Array is part of the Australia Telescope National Facility (https://ror.org/05qajvd42) which is funded by the Australian Government for operation as a National Facility managed by CSIRO. We acknowledge the Gomeroi people as the traditional owners of the Observatory site.
