[vsnet-grb-info 26544] GRB 201014A: Swift/UVOT Upper Limits
GCN Circulars
gcncirc at capella2.gsfc.nasa.gov
Fri Oct 16 13:30:15 JST 2020
TITLE: GCN CIRCULAR
NUMBER: 28644
SUBJECT: GRB 201014A: Swift/UVOT Upper Limits
DATE: 20/10/16 04:29:10 GMT
FROM: Sam LaPorte at PSU <sjl5346 at psu.edu>
GRB 201014A: Swift/UVOT Upper Limits
J. D. Gropp (PSU) and E. Ambrosi (INAF-IASFPA)
report on behalf of the Swift/UVOT team:
The Swift/UVOT began settled observations of the field of GRB 201014A
176 s after the BAT trigger (Ambrosi et al., GCN Circ. 28623) .
No optical afterglow consistent with the XRT position
(D'Elia et al., GCN Circ. 28626)
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
b 3291 3483 38 >19.17
uvm2 7457 7657 196 >19.18
u 3035 7877 275 >19.82
v 3365 7452 235 >19.24
uvw1 3414 7862 216 >19.25
uvw2 3514 7248 216 >19.32
white 2876 7042 382 >21.14
The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.05 in the direction of the burst
(Schlegel et al. 1998).
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