TITLE: GCN CIRCULAR NUMBER: 18911 SUBJECT: Konus-Wind observation of GRB 160119A DATE: 16/01/21 12:57:45 GMT FROM: Anna Kozlova at Ioffe Institute A. Kozlova, S. Golenetskii, R. Aptekar, D. Frederiks, P. Oleynik, M. Ulanov, D. Svinkin, A. Tsvetkova, A.Lysenko, and T. Cline, on behalf of the Konus-Wind team, report: The long-duration GRB 160119A (Swift-BAT trigger #671014: Marshall, et al., GCN Circ. 18893, Stamatikos, et al., GCN Circ. 18899) was detected by Konus-Wind in the waiting mode. The burst light curve shows a weak count rate increase starting from ~T0(BAT)+9 s. The main phase of the event consists of a single peak from ~T0(BAT)+120 s to ~T0(BAT)+175 s. As calculated from the Bayesian block division, the total duration of the burst is ~215 s. The K-W light curve of this burst is available at http://www.ioffe.rssi.ru/LEA/GRBs/GRB160119A/ As observed by Konus-Wind, the burst had a fluence of 1.68(-0.18,+0.19)x10^-5 erg/cm2 and a 2.944-s peak flux, measured from ~T0(BAT)+144.3 s, of 6.39(-0.85,+0.89)x10^-7 erg/cm2/s (both in the 20 - 1200 keV energy range). Modelling the K-W 3-channel time-integrated spectrum (measured from ~T0(BAT)+8.9 s to ~T0(BAT)+223.8 s) by the cutoff power law yields the following model parameters: the photon index alpha = -1.73(-0.12,+0.15), and the peak energy Ep = 189(-53,+231) keV. Modelling the 3-channel spectrum near the peak count rate (from ~T0(BAT)+138.4 s to ~T0(BAT)+150.2 s) by the cutoff power law yields the following model parameters: the photon index alpha = -1.16(-0.13,+0.15), and the peak energy Ep = 187(-25,+34) keV. All the quoted errors are estimated at the 1 sigma confidence level. All the presented results are preliminary.