Skip to main content
Testing. You are viewing the public testing version of GCN. For the production version, go to https://gcn.nasa.gov.
New Announcement Feature, Code of Conduct, Circular Revisions. See news and announcements

GCN Circular 28644

Subject
GRB 201014A: Swift/UVOT Upper Limits
Date
2020-10-16T04:29:10Z (4 years ago)
From
Sam LaPorte at PSU <sjl5346@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).

<https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=icon>
Virus-free.
www.avast.com
<https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=link>
<#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
Looking for U.S. government information and services? Visit USA.gov