//////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 11157 SUBJECT: GRB 100829.9: MASTER Optical Limits DATE: 10/08/31 06:29:13 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs E. Gorbovskoy, V. Lipunov, V.Kornilov, A.Belinski, N.Shatskiy, N.Tyurina, D.Kuvshinov, P.Balanutsa, V.V.Chazov, P.V.Kortunov, A.Kuznetsov, D.Zimnukhov, M. Kornilov Sternberg Astronomical Institute, Moscow State University A. Tlatov, A.V. Parhomenko, D. Dormidontov, V.Sennik Kislovodsk Solar Station of the Pulkovo Observatory V.Yurkov, Yu.Sergienko, D.Varda, I.Kudelina Blagoveschensk Educational State University, Blagoveschensk V.Krushinski, I.Zalozhnich, T.Kopytova, A. Popov Ural State University, Kourovka K.Ivanov, S.Yazev, N.M.Budnev, E.Konstantinov, V.Lenok, O.Gres, O.Chuvalaev, V.Poleschuk Irkutsk State University MASTER robotic telescopes (MASTER-Net: http://observ.pereplet.ru, 6 Very Wide Field cameras and 2 Wide Field Telescopes ) located near Kislovodsk was pointed to the FERMI GRB 100829.9 (FERMI Trigger N 304808530 ) 30 sec after Notice time and 44 s after trigger time We have 12 polarization images from two tube with exposition from 10 to 60 seconds, before objects set below horizont. start UT end UT t_exp(s) mlim t_start-tGRB(s) Coadd? Filter -------------------------------------------------------------------------- 21:02:55 21:03:05 10 14.0 44.0 N 21:02:55 21:08:03 200 15.7 44.0 Y The message may be cited. mailto: lipunov@sai.msu.ru //////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 11199 SUBJECT: IPN Triangulation of the very bright GRB 100829A DATE: 10/09/03 20:42:29 GMT FROM: Valentin Pal'shin at Ioffe Inst S. Golenetskii, R. Aptekar, E. Mazets, V. Pal'shin, D. Frederiks, and T. Cline, on behalf of the Konus-Wind team, J. Goldsten, and K. Hurley, on behalf of the MESSENGER GRNS GRB team, V. Connaughton, M. Briggs, and C. Meegan, on behalf of the Fermi GBM team, J. Cummings, D. Palmer, S. Barthelmy, N. Gehrels, and H. Krimm, on behalf of the Swift-BAT team, and D. M. Smith, R. P. Lin, J. McTiernan, R. Schwartz, C. Wigger, and W. Hajdas, on behalf of the RHESSI GRB team, report: Fermi (GBM), Konus-Wind, Swift (BAT), MESSENGER (GRNS), and RHESSI observed the very bright GRB 100829A at about 75729 s UT (21:02:09) (the Fermi/GBM trigger 304808530). The burst was outside the coded field of view of the BAT. We have triangulated this burst to the following 3 sigma error box: ----------------------------------------------- RA(2000), deg Dec(2000), deg ----------------------------------------------- Center: 90.409 (06h 01m 38s) +30.314 (+30d 18' 49") Corners: 90.335 (06h 01m 20s) +29.523 (+29d 31' 22") 90.353 (06h 01m 25s) +30.317 (+30d 19' 02") 90.490 (06h 01m 58s) +31.121 (+31d 07' 16") 90.464 (06h 01m 51s) +30.310 (+30d 18' 37") ----------------------------------------------- The error box area is 278 sq. arcmin. The maximum distance between the box corners is 1.6 deg. This error box may be improved. //////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 11204 SUBJECT: Konus-Wind observation of GRB 100829A DATE: 10/09/04 11:13:35 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 bright GRB 100829A, (localized by IPN: Golenetskii et.al, GCN 11199) triggered Konus-Wind at T0=75727.937s UT (21:02:07.937) The burst light curve started with a bright complex ~2.5s-long structure, followed by a weaker emission episode at T0 + 6 s. The total duration of the burst is ~10 s. The emission is seen up to 1.5 MeV. The Konus-Wind light curve of this GRB is available at http://www.ioffe.ru/LEA/GRBs/GRB100829_T75727/ As observed by Konus-Wind the burst had a fluence of (1.40 ± 0.15)x10-5 erg/cm2, and a 16-ms peak flux, measured from T0+1.472s, of (2.4 ± 0.6)x10-5 erg/cm2/s (both in the 20 keV - 2 MeV energy range). The time-integrated spectrum of the burst (from T0 to T0+10.240 s) is best fit in the 20 keV - 2 MeV range by a power law with exponential cutoff model, for which alpha = -1.44(-0.12, +0.14), and Ep = 278(-47, +73) keV (chi2 = 36.2/61 dof). Fitting this spectrum by the GRB (Band) model yields to the same values of alpha and Ep, with beta = -9.4 (<-2.3), chi2 = 36.2/60 dof. The spectrum at the maximum count rate (measured from T0+0.256 to T0+2.048 s) is best fit in the 20 keV - 2 MeV range by the GRB (Band) model, for which: the low-energy photon index alpha = -0.90 (-0.17, +0.35), the high energy photon index beta = -2.7 (<-2.2), the peak energy Ep = 263(-71, +56) keV (chi2 = 48.5/51 dof). All the quoted results are preliminary. All the quoted errors are at the 90% confidence level. //////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 11226 SUBJECT: GRB 100829A: MASTER optical observations DATE: 10/09/06 13:55:22 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs E. Gorbovskoy, V. Lipunov, V.Kornilov, A.Belinski, N.Shatskiy, N.Tyurina, D.Kuvshinov, P.Balanutsa, V.V.Chazov, P.V.Kortunov, A.Kuznetsov, D.Zimnukhov, M. Kornilov Sternberg Astronomical Institute, Moscow State University A. Tlatov, A.V. Parhomenko, D. Dormidontov, V.Sennik Kislovodsk Solar Station of the Pulkovo Observatory V.Yurkov, Yu.Sergienko, D.Varda, I.Kudelina Blagoveschensk Educational State University, Blagoveschensk V.Krushinski, I.Zalozhnich, T.Kopytova, A. Popov Ural State University, Kourovka K.Ivanov, S.Yazev, N.M.Budnev, E.Konstantinov, V.Lenok, O.Gres, O.Chuvalaev, V.Poleschuk Irkutsk State University As we wroute (Gorbovskoy et. al., GCN CIRCULAR N11157) MASTER robotic telescopes (MASTER-Net: http://observ.pereplet.ru, 6 Very Wide Field cameras and 2 Wide Field Telescopes ) located near Kislovodsk was pointed to the FERMI GRB 100829A (FERMI Trigger N 304808530 ) 30 sec after Notice time and 44 s after trigger time. Unfortunately error box from IPN Triangulation of the very bright GRB 100829A (Golenetskii et al., GCN Circ N11199) very near horizont (see image http://observ.pereplet.ru/images/GRB100829A/WFC_FOW.jpg ). mailto: lipunov@sai.msu.ru