GCN Circular 39433
Subject
GRB 250221A: VLA radio detection
Date
2025-02-23T18:32:23Z (16 days ago)
From
Roberto Ricci at INAF-IRA <ricci@ira.inaf.it>
Via
Web form
R. Ricci (U Rome), E. Troja (U Rome) report on behalf of a larger collaboration:
We observed the GRB 250221A discovered by Swift/BAT (Caputo et al. GCN 39396) with
the Very Large Array at the centre frequency of 10 GHz (X-band) with a bandwidth of 4 GHz
at a mid time of 1.95 days after the trigger.
A weak source is detected at the target position with a flux density of 63 +/- 9 microJy.
Further observations are planned to assess its variability.
We thank the VLA staff for promptly executing the observations.