GCN Circular 23655
Subject
GRB 190109B: BOOTES-5/JGT optical observations
Date
2019-01-09T15:44:19Z (5 years ago)
From
Alberto Castro-Tirado at Inst.de Astro. de Andalucia <ajct@iaa.es>
X.-Y.Li, Y.-D. Hu, I. Carrasco, E. Fernandez-Garcia and A. J.
Castro-Tirado (IAA-CSIC), D. Hiriart and W. H. Lee (UNAM), S. Jeong and
I. H. Park (SKKU) and M. D. Caballero-Garcia (ASU-CAS, CZ) on behalf of
a larger collaboration, report:
The 60cm BOOTES-5/JGT robotic telescope at Observatorio Astronomico
Nacional in San Pedro Martir (Mexico) followed-up GRB 190109B
(Sbarufatti et al., GCNC 23648) starting at 13:30 UT (~1.6 hr after
trigger). Within the enhanced Swift/XRT position (Beardmore et al., GCNC
23652), no optical afterglow is found down to 20.4 mag in the r-band on
the co-added image, in agreement with the UVOT upper limit (Sbarufatti
et al., GCNC 23648).
We thank the staff at Observatorio Astronomico Nacional in San Pedro
Martir for its excellent support.