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GCN Circular 28644

GRB 201014A: Swift/UVOT Upper Limits
2020-10-16T04:29:10Z (4 years ago)
Sam LaPorte at PSU <>
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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