GCN Circular 10711
Subject
Swift-BAT trigger 421072 is not astrophyical
Date
2010-05-04T17:35:54Z (15 years ago)
From
Scott Barthelmy at NASA/GSFC <scott@lheamail.gsfc.nasa.gov>
S. D. Barthelmy (GSFC), C. B. Markwardt (GSFC/UMD), M. Stamatikos (GSFC/ORAU),
C. Pagani (U Leicester)
(on behalf of the Swift-BAT team):
Using the data set from T-239 to T+963 sec from recent telemetry downlinks,
we report further analysis of BAT trigger #421072 (Pagani, et al.,
GCN Circ. 10708). Ground processing does not reveal a significant
detection in the image domain, nor does the mask-weight lightcurve.
Given the (a) the low significance in BAT, (b) lack of an XRT detection,
and (c) the lack of a detection in the simulataneous INTEGRAL-IBIS observation
(Bozzo, GCN Circ 10710), we conclude that this is not a GRB nor is it
anything astrophysical.