GCN Circular 32349
Subject
GRB 220708A: BOOTES-5/JGT early optical upper limit
Date
2022-07-08T14:25:49Z (2 years ago)
From
Youdong HU at IAA-CSIC <huyoudong072@hotmail.com>
Y.-D. Hu, E. Fernandez-Garcia, A. J. Castro-Tirado, I. Perez-Garcia, M.D. Caballero-Garcia, R. Sanchez-Ramirez (IAA-CSIC), D. Hiriart and W. H. Lee (UNAM), C. J. Perez del Pulgar and I. Carrasco (UMA), I. H. Park (SKKU) on behalf of a larger collaboration, report:
Following the detection of GRB 220708A by Swift (D'Elia et al. GCNC 32343), the BOOTES-5/JGT 0.6m robotic telescope at Observatorio Astronomico Nacional in San Pedro Martir (Mexico) observed the GRB location starting on Jul 08, 04:40:14 UT (~ 45 s after trigger). In the early co-added image (30 x 10 s exposures in the clear filter), no optical afterglow is detected within the enhanced Swift/XRT error region (Osborne et al. GCNC 32347) down to 20.5 mag.
We thank the staff at Observatorio Astronomico Nacional in San Pedro Martir for their excellent support.