GCN Circular 27884

Subject

GRB 200529A: Swift/UVOT Upper Limits

Event

GRB 200529A

Date

2020-06-03T01:43:27Z (5 years ago)

From

Kira Simpson at PSU <kira.simpson1984@gmail.com>

GRB 200529A: Swift/UVOT Upper Limits

K. K. Simpson (PSU) and V. D'Elia (SSDC)
report on behalf of the Swift/UVOT team:

The Swift/UVOT began settled observations of the field of GRB 200529A
195 s after the BAT trigger (D'Elia et al., GCN Circ. 27845Loading...
 
 ).
No optical afterglow consistent with the optical position
(Malesani et al. GCN Circ. 27846Loading...
 
 )
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

white_FC           216          360          142         >19.8
white              216          360          142         >19.8
v                  195         3771          209         >19.1
b                 4392         4495          102         >19.5
u                 4187         4386          197         >19.7
w1                3982         4182          197         >19.0
m2                3777         3977          197         >20.2

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.29 in the direction of the burst
(Schlegel et al. 1998).