GCN Circular 44239
Subject
EP260321a: VLA radio detection
Event
Date
2026-04-09T01:06:49Z (a day ago)
From
todwyer1@jh.edu
Via
Web form
Tanner O'Dwyer (JHU), Alessandra Corsi (JHU), Gokul Srinivasaragavan (UMD), S. Bradley Cenko (NASA GSFC), Shreya Anand (Stanford.U), Anna Ho (Cornell), Jesper Sollerman (U.Stockholm), Bei Zhou (FemiLab & U.Chicago), Marc Kamionkowski (JHU), Jillian Rastinejad (UMD)
We observed the field of EP260321a (Huang et al., GCN 44068) with the Karl G. Jansky Very Large Array (VLA) in its A-configuration. Our observations were conducted at about 13.6 days post trigger at a nominal central frequency of 6 GHz. We report the detection of a radio source with a S/N of about 4 at a position compatible with that of SN 2026gzf (Corcoran et al., GCN 44105, Rastinejad et al., GCN 44107). Our image RMS is about 5 uJy. Further observations are planned to also evaluate potential contribution of the host galaxy to the observed emission.