[vsnet-grb-info 21805] GRB 190219A: BOOTES-1 optical limits

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  23904
SUBJECT: GRB 190219A: BOOTES-1 optical limits
DATE:    19/02/19 21:47:58 GMT
FROM:    Alberto Castro-Tirado at Inst.de Astro. de Andalucia  <ajct at iaa.es>

C. Perez del Pulgar (Univ. de Malaga), Y.-D. Hu, X.-Y.Li, E. 
Fernandez-Garcia, A. Ayala, A. J. Castro-Tirado (IAA-CSIC),  A. 
Castellon, I. Carrasco (Univ. de Malaga) on behalf of a
larger collaboration, report:

"Following the detection of GRB 190219A by Swift/BAT (Beardmore et al. 
GCNC 23902), the 0.3m BOOTES-1B robotic telescope in Mazagon (Huelva), 
southern Spain, responded automatically starting at 19:40:59 UT (121s 
after trigger; 82s after the alert). No optical afterglow is found down 
to 19 mag (unfiltered) on the co-added (50x10s) frames within the 
Swift/XRT error box (Evans et al. GCNC 23903), consistent with the 
non-detection by Swift/UVOT (Beardmore et al. GCNC 23902). Observations 
are ongoing".