Swift trigger 755873: Swift BAT and XRT refined analysis
Abstract
We report further analysis of the Swift/BAT trigger #755873 (Page et al., GCN Circ. 21193) using data from the recent telemetry downlink. The BAT ground analysis uses the data set from T-240 to T+962 sec. The BAT image significance is only 1.9 sigma. Also, the mask-weighted light curve does not show anything significant. XRT collected 4.5 ks of Photon Counting mode data between 134 s and 13.1 ks after the BAT trigger. No X-ray was detected within the 90% BAT error circle, to an 3-sigma upper limit of 3.1x10^-3 count s^-1. We therefore conclude that this trigger is due to noise fluctuation. The results of the batgrbproduct analysis are available at http://gcn.gsfc.nasa.gov/notices_s/755873/BA/
- Publication:
-
GRB Coordinates Network
- Pub Date:
- June 2017
- Bibcode:
- 2017GCN.21202....1B