TITLE: GCN CIRCULAR NUMBER: 12872 SUBJECT: Konus-Wind observation of GRB 120119A DATE: 12/01/19 13:18:14 GMT FROM: Dmitry Frederiks at Ioffe Institute S. Golenetskii, R.Aptekar, D. Frederiks, E. Mazets, V. Pal'shin, P. Oleynik, M. Ulanov, D. Svinkin, and T. Cline on behalf of the Konus-Wind team, report: The long GRB 120119A (Swift-BAT trigger #512035: Beardmore et al., GCN 12859) triggered Konus-Wind at T0=14674.872s UT (04:01:34.872) The burst light curve shows a multi-peaked pulse with a total duration of ~61 s. The emission is seen up to ~7 MeV. The Konus-Wind light curve of this GRB is available at http://www.ioffe.ru/LEA/GRBs/GRB120119_T14674/ As observed by Konus-Wind the burst had a fluence of (4.7 ± 0.6)x10-5 erg/cm2, and a 256-ms peak flux, measured from T0+16.384 s, of (3.9 ± 0.5)x10-6 erg/cm2/s (both in the 20 keV - 10 MeV energy range). The time-integrated spectrum of the burst (measured from T0 to T0+49.152 s) is best fitted in the 20 keV - 10 MeV range with the GRB (Band) model, for which: the low-energy photon index alpha = -0.85 (-0.16, +0.20), the high energy photon index beta = -2.34 (-0.22, +0.15), the peak energy Ep = 153(-19, +21) keV, chi2 = 73.5/84 dof. The spectrum of the initial pulse (measured from T0 to T0+16.384 s) is best fitted is best fitted in the 20 keV - 10 MeV range with the GRB (Band) model, for which: the low-energy photon index alpha = -0.92 (-0.13, +0.14), the high energy photon index beta = -2.41 (-0.35, +0.16), the peak energy Ep = 192(-21, +29) keV, chi2 = 72.4/84 dof. Assuming the redshift z=1.73 (Cucchiara & Prochaska, GCN 12865; Pancoast et al., GCN 12866; Milisavljevic et al., GCN 12867) and a standard cosmology model with H_0 = 71 km/s/Mpc, Omega_M = 0.27, Omega_Lambda = 0.73, the isotropic energy release E_iso is (3.6 ± 0.5)x10^53 erg, the isotropic peak luminosity L_iso_max is (5.1 ± 0.7)x10^52 erg/s, and Ep_rest is (265 ± 35) keV. All the quoted results are preliminary. All the quoted errors are at the 90% confidence level.