GCN Circular 45921
Subject
EP261006a: 10 GHz VLA observations
Event
Date
2026-10-12T11:42:45Z (a day ago)
From
muskan.yadav@students.uniroma2.eu
Via
Web form
M. Yadav, R. Ricci, E. Troja (U Rome) report:
We observed the field of the fast X-ray transient EP261006a (Lao et al. GCN 45826) with the Karl G. Jansky Very Large Array in X-band at the centre frequency of 10 GHz with a bandwidth of 4 GHz on October 10th 2026 at mid-time 10:40 UT(3.7 days after the trigger).
Data were calibrated and imaged using standard procedures in CASA (v6.6.6). 3C48 was used for flux density and bandpass calibration and J0149+0555 was used for complex gain calibration.
No radio source is detected at the candidate optical counterpart (Eyles-Ferris et al. GCN 45831; Wu et al. GCN 45852; Bochenek & Perley GCN 45853; Chen et al. GCN 45854) down to a preliminary 3-sigma upper limit of ~40 uJy/beam.
We thank the VLA staff for executing the observations.