GCN Circular 18031
Subject
Swift trigger 649143 is not AX J1619.4-4945 or other astrophysical source
Date
2015-07-17T13:26:37Z (9 years ago)
From
Amy Lien at GSFC <amy.y.lien@nasa.gov>
A. Y. Lien (GSFC/UMBC), S. D. Barthelmy (GSFC), J. A. Kennea (PSU)
P. Romano (INAF-IASFPA) report on behalf of the Swift Team:
We conclude that Swift trigger 649143 (Barthelmy, et al., GCN Circ. 18025) was
the result of noise fluctuations and is not due to AX J1619.4-4945 or other
astrophysical event.
We have analyzed the BAT data set from T-119 to T+148 sec from the recent
telemetry downlink. We find that there is no sign of significant emission from
the trigger location at any point in this interval.
XRT observations with 471 seconds of data show a detection of
AX J1619.4-4945 at 0.05 c/s, which is consistent with the quiescent flux level
of this source.