GCN Circular 22858
Subject
GRB 180624A: LCO Haleakala observations
Date
2018-06-26T15:32:43Z (6 years ago)
From
Cristiano Guidorzi at Ferrara U,Italy <guidorzi@fe.infn.it>
C. Guidorzi, R. Martone (U. Ferrara), S. Kobayashi (LJMU), C.G. Mundell
(U. Bath), A. Gomboc (U. Nova Gorica), I.A. Steele (LJMU), A. Cucchiara,
D. Morris (U. of Virgin Islands) on behalf of a large collaboration report:
The LCO 2-m unit at Haleakala Observatory (Hawaii) observed the optical
afterglow of Swift GRB 180624A (Gibson et al. GCN 22832) on June 25,
from 13:02 to 13:14 UT (0.97 days after the GRB trigger time) with the
SDSS r filter. The source is detected with a magnitude of 21.44 +- 0.10
(AB). Compared with previous reports (Guidorzi et al. GCN 22839; Schady
GCN 22840; Rossi et al. GCN 22845; Watson et al. GCN 22846) we confirm
that the source's decay has significantly steepened from ~0.6 to ~1.0
days, as first noted by Watson et al.