GCN Circular 13483
O. M. Littlejohns, K. Page (U. Leicester) & C. J. Saxton (UCL-MSSL) reports on behalf of the Swift-XRT team: We have analysed 2.4 ks of XRT data for GRB 120714B (Saxton et al. GCN Circ. 13471), from 110 s to 75.0 ks after the BAT trigger. The data comprise 9 s in Windowed Timing (WT) mode (taken while Swift was slewing), with the remainder in Photon Counting (PC) mode. The light curve can be modelled with a power-law decay with a decay index of alpha=1.87 (+0.13, -0.09). A spectrum formed from the PC mode data can be fitted with an absorbed power-law with a photon spectral index of 2.0 (+0.9, -0.6). The best-fitting absorption column is 1 (+11, -0) x 10^20 cm^-2, consistent with the Galactic value of 1.2 x 10^20 cm^-2 (Kalberla et al. 2005). The counts to observed (unabsorbed) 0.3-10 keV flux conversion factor deduced from this spectrum is 3.4 x 10^-11 (3.6 x 10^-11) erg cm^-2 count^-1. A summary of the PC-mode spectrum is thus: Total column: 1 (+11, -0) x 10^20 cm^-2 Galactic foreground: 1.2 x 10^20 cm^-2 Excess significance: <1.6 sigma Photon index: 2.0 (+0.9, -0.6) The results of the XRT-team automatic analysis are available at http://www.swift.ac.uk/xrt_products/00526642. This circular is an official product of the Swift-XRT team.