[vsnet-grb-info 22173] GRB 190427A: BOOTES-1 and BOOTES-5/JGT early follow-up observations

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  24272
SUBJECT: GRB 190427A: BOOTES-1 and BOOTES-5/JGT early follow-up observations
DATE:    19/04/27 08:22:34 GMT
FROM:    Alberto J. Castro-Tirado at IAA-CSIC  <ajct at iaa.es>

Y.-D. Hu, X.-Y.Li, E. Fernandez-Garcia, A. Ayala, and A. J. 
Castro-Tirado (IAA-CSIC), D. Hiriart and W. H. Lee (UNAM), S. Jeong and 
I. H. Park (SKKU), I. Carrasco, A. Castellon, C. Perez del Pulgar (Univ. 
de Malaga), S. B. Pandey (ARIES) and M. D. Caballero-Garcia (ASU-CAS, 
CZ) on behalf of a larger collaboration, report:

Following the detection of the short-duration GRB 190427A (Tohuvavohu et 
al. GCNC 24261), both the 30cm BOOTES-1 robotic telescope in Mazagon 
(Huelva, southern Spain) and the BOOTES-5/JGT robotic telescope at 
Observatorio Astronomico Nacional in San Pedro Martir (Mexico), 
automatically responded at 04:35:01 UT (~46 s after trigger) and 
04:55:00 UT (~0.33 hr after trigger) respectively. No optical afterglow 
is detected down to 17 mag and 20 mag respectively. This is consistent 
with the no-detection reported by Lipunov et al. (GCNC 24263) and Izzo 
et al. (GCNC 24265). Further analysis is ongoing.