GRB 190719C: Swift-XRT light-curve fit
Abstract
GCN Circ. 25125 was missing the details of the fit to the XRT light-curve. The correct information is as follows: The light curve can be modelled with an initial power-law decay with an index of alpha=2.11 (+/-0.05), followed by a break at T+387 s to an alpha of 3.7 (+1.0, -0.4). A second break occurs at T+967 s to an alpha of 0.33 (+0.06, -0.09). If the light curve continues to decay with a power-law decay index of 0.33, the count rate at T+24 hours will be 0.14 count s^-1, corresponding to an observed (unabsorbed) 0.3-10 keV flux of 6.3 x 10^-12 (7.0 x 10^-12) erg cm^-2 s^-1. We apologise for the omission of these numbers in the earlier circular. This circular is an official product of the Swift-XRT team.
- Publication:
-
GRB Coordinates Network
- Pub Date:
- July 2019
- Bibcode:
- 2019GCN.25126....1P