GCN Circular 14902
Subject
GRB 130615A: Swift/UVOT Upper Limits
Date
2013-06-15T19:21:11Z (11 years ago)
From
Samantha Oates at MSSL <sro@mssl.ucl.ac.uk>
S. R. Oates (MSSL-UCL) and E. Sonbas (NASA/GSFC/Adiyaman Univ.)
report on behalf of the Swift/UVOT team:
The Swift/UVOT began settled observations of the field of GRB 130615A
180 s after the BAT trigger (Sonbas et al., GCN Circ. 14897).
No optical afterglow consistent with the optical position
(Elliott et al. GCN Circ. 14898)
is detected in the initial UVOT exposures.
Preliminary 3-sigma upper limits using the UVOT photometric system
(Breeveld et al. 2011, AIP Conf. Proc. 1358, 373) for the first
finding chart (FC) exposure and subsequent exposures are:
Filter T_start(s) T_stop(s) Exp(s) Mag
u_FC 180 430 246 >20.1
v 463 7314 580 >20.1
u 180 12850 1827 >21.3
w1 512 11936 1434 >20.9
m2 488 7445 672 >20.3
w2 439 13208 933 >20.8
The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.12 in the direction of the burst
(Schlegel et al. 1998).