//////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 13353 SUBJECT: IPN Triangulation of short GRB 120603A DATE: 12/06/04 17:59:15 GMT FROM: Dmitry Svinkin at Ioffe Institute S. Golenetskii, R. Aptekar, E. Mazets, V. Pal'shin, D. Frederiks, D. Svinkin, and T. Cline on behalf of the Konus-Wind team, K. Hurley, and J. Goldsten, on behalf of the MESSENGER NS GRB team, V. Connaughton, M. Briggs, and C. Meegan, on behalf of the Fermi GBM team, A. von Kienlin, X. Zhang, A. Rau, V. Savchenko, E. Bozzo, and C. Ferrigno, on behalf of the INTEGRAL SPI-ACS GRB team, and K. Yamaoka, M. Ohno, Y. Hanabata, Y. Fukazawa, T. Takahashi, M. Tashiro, Y. Terada, T. Murakami, and K. Makishima on behalf of the Suzaku WAM team, report: The short-duration GRB 120603A has been observed by Fermi (GBM: trigger 360412331), INTEGRAL (SPI-ACS), Konus-Wind, Suzaku (WAM), and MESSENGER (GRNS), so far, at about 37930 s UT (10:32:10). We have triangulated it to a preliminary, 3 sigma error box whose coordinates are: --------------------------------------------- RA(2000), deg Dec(2000), deg --------------------------------------------- Center: 198.794 (13h 15m 11s) +4.326 ( +4d 19' 35") Corners: 197.693 (13h 10m 46s) +2.527 ( +2d 31' 36") 199.766 (13h 19m 04s) +6.230 ( +6d 13' 49") 199.927 (13h 19m 42s) +6.103 ( +6d 06' 12") 197.853 (13h 11m 25s) +2.399 ( +2d 23' 56") --------------------------------------------- The error box area is 0.857 sq. deg, and its maximum dimension is 4.280 deg. This box may be improved. The time history and spectrum will be given in a forthcoming GCN Circular. //////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 13354 SUBJECT: Konus-Wind observation of GRB 120603A DATE: 12/06/05 11:40:54 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 short-duration GRB 120603A (IPN detection and localization: Golenetskii at al., GCN 13353) triggered Konus-Wind at T0=37934.201s UT (10:32:14.201) The light curve shows a single pulse with a total duration of ~0.3 s. The Konus-Wind light curve of this GRB is available at http://www.ioffe.ru/LEA/GRBs/GRB120603_T37934/ As observed by Konus-Wind the burst had a fluence of (1.0 ± 0.1)x10-6 erg/cm2, and a 64-ms peak flux, measured from T0-0.064, of (6.2 ± 1.1)x10-6 erg/cm2/s (both in the 20 keV - 10 MeV energy range). Since almost the whole of the emission is seen before the trigger, no multichannel spectra are available for this burst. Modelling the 3-channel time-integrated spectrum (from T0-0.256 to T0) by a power law with exponential cutoff model: dN/dE ~ (E^alpha)*exp(-E*(2+alpha)/Ep) yields alpha = -0.4 ± 0.2, and Ep = 560 ± 60 keV. All the quoted errors are estimated at the 1 sigma confidence level. //////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 13356 SUBJECT: GRB 120603A: Suzaku WAM observation of the prompt emission DATE: 12/06/06 08:15:54 GMT FROM: Makoto Tashiro at Saitama U/Swift T. Yasuda, M. S. Tashiro, Y. Terada, W. Iwakiri, K. Takahara, M. Asahina, S. Kobayashi, A. Sakamoto, H. Ueno (Saitama U.), M. Akiyama, N. Ohmori, M. Yamauchi (Univ. of Miyazaki), K. Yamaoka, Y. E. Nakagawa (Waseda U.), Y. Hanabata, T. Kawano, K. Takaki, R. Nakamura, Y.Tanaka, M. Ohno, Y. Fukazawa (Hiroshima U.), S. Sugita (Nagoya U.), M. Kokubun, T. Takahashi (ISAS/JAXA), Y. Urata, P. Tsai (NCU), K. Nakazawa, K. Makishima (Univ. of Tokyo), on behalf of the Suzaku WAM team, report: The IPN localized GRB 120603A (IPN; Golenetskii et al., GCN 13353, Konus-Wind; Golenetskii et al., GCN 13354) triggered the Suzaku Wide-band All-sky Monitor (WAM) which covers an energy range of 50 keV - 5 MeV at 2012-06-03 10:32:9.80 UT (=T0). The observed light curve shows a single peak with a duration (T90) of about 0.19 seconds. The fluence in 100 - 1000 keV was 5.49 (+1.15/-4.79) x10^-7 erg/cm^2. The 1-s peak flux was 1.19 (+0.20/-0.94) photons/cm^2/s in the same energy range. Preliminary result shows that the time-averaged spectrum is well fitted by a power-law with exponential cutoff model: dN/dE ~ E^{-alpha} * exp(-(2-alpha)*E/Epeak) with alpha 0.70 (+0.81/-1.17), and Epeak 580 (+285/-203) keV (chi^2/d.o.f. = 16/14). All the quoted errors are at statistical 90% confidence level The light curves for this burst are available at: http://www.astro.isas.jaxa.jp/suzaku/HXD-WAM/WAM-GRB/grb/trig/grb_table.html