//////////////////////////////////////////////////////////////////////// TITLE: GCN GRB OBSERVATION REPORT NUMBER: 5039 SUBJECT: IPN triangulation of GRB060429 (short/hard) DATE: 06/04/30 17:15:12 GMT FROM: Kevin Hurley at UCBerkeley/SSL K. Hurley and T. Cline, on behalf of the Ulysses, Mars Odyssey, and Konus GRB teams, S. Golenetskii, R. Aptekar, E. Mazets, V. Pal'shin, and D. Frederiks on behalf of the Konus-Wind team, I. Mitrofanov, A. Kozyrev, M. Litvak, A. Sanin, V. Tret'yakov and A. Parshukov, on behalf of the HEND-Odyssey GRB team, W. Boynton, C. Fellows, K. Harshman, C. Shinohara and R. Starr, on behalf of the GRS-Odyssey GRB team, A. von Kienlin, G. Lichti, A. Rau, D. Gotz, and S. Mereghetti, on behalf of the INTEGRAL GRB team, report: A ~0.25 s long, hard spectrum GRB, 060429, occurred around 44391 s UT. It was observed by Konus-Wind, Mars Odyssey, and INTEGRAL-SPI-ACS. Ulysses was off. The burst has been triangulated to RA, Dec = 115.488, -24.959 deg (J2000). The corners of the 3 sigma error box are: ----------------------- RA, deg Dec, deg ----------------------- 115.679 -25.067 115.891 -24.675 115.083 -25.240 115.297 -24.852 -------------------- This error box may be improved. //////////////////////////////////////////////////////////////////////// TITLE: GCN GRB OBSERVATION REPORT NUMBER: 5067 SUBJECT: GRB 060429: Refined IPN error box and Konus-Wind spectrum DATE: 06/05/03 09:42:10 GMT FROM: Valentin Pal'shin at Ioffe Inst S. Golenetskii, R. Aptekar, E. Mazets, V. Pal'shin, and D. Frederiks on behalf of the Konus-Wind team, K.Yamaoka, M.Ohno, Y.Fukazawa, T.Takahashi, M.Tashiro, Y. Terada, T.Murakami, and K.Makishima on behalf of the Suzaku-WAM team, K. Hurley and T. Cline, on behalf of the Ulysses, Mars Odyssey, and Konus GRB teams, I. Mitrofanov, A. Kozyrev, M. Litvak, A. Sanin, V. Tret'yakov and A. Parshukov, on behalf of the HEND-Odyssey GRB team, W. Boynton, C. Fellows, K. Harshman, C. Shinohara and R. Starr, on behalf of the GRS-Odyssey GRB team, D. M. Smith, R. P. Lin, J. McTiernan, R. Schwartz, C. Wigger, W. Hajdas, and A. Zehnder, on behalf of the RHESSI GRB team, A. von Kienlin, G. Lichti, A. Rau, D. Gotz, and S. Mereghetti, on behalf of the INTEGRAL GRB team, report: The short hard GRB 060429 (Hurley et al., GCN 5039) was also detected by Suzaku-WAM and RHESSI, resulting in a smaller error box. The refined 3 sigma error box is: ----------------------- RA, deg Dec, deg (J2000) ----------------------- Center: 115.5126 -24.9525 Corners: 115.2478 -25.1930 115.4979 -25.1205 115.7763 -24.7102 115.5271 -24.7844 -------------------- The error box area is 267 sq. arcmin. This error box may be improved. As observed by Konus-Wind this burst had fluence 6.29(-2.69,+0.64)x10^-6 erg/cm2, and the 16-ms peak flux measured from T0+0.012 s 1.07(-0.47,+0.16)x10^-4 erg/cm2/s (both in the 20 keV - 5 MeV energy range). The spectrum integrated over the most intense part of the burst (from T0 to T0+0.064 s) is well fitted (in the 20 keV - 5 MeV range) by a power law with exponential cutoff model: dN/dE ~ E^(-alpha)*exp(-E*(2-alpha)/Ep) with alpha = 0.638 (-0.162, +0.141) and Ep = 1558 (-320, +416) keV (chi2 = 18.5/26 dof). The Konus-Wind trigger time T0=44389.712 s UT (12:19:49.712). All the quoted errors are at the 90% confidence level. //////////////////////////////////////////////////////////////////////// TITLE: GCN GRB OBSERVATION REPORT NUMBER: 5083 SUBJECT: GRB 060429: Suzaku WAM observation DATE: 06/05/06 17:40:38 GMT FROM: Masanori Ohno at Hiroshima U M. Ohno, T. Takahashi, Y. Fukazawa (Hiroshima U.), K. Yamaoka, S. Sugita (Aoyama Gakuin U.), Y. Terada, T. Tamagawa (RIKEN), S. Hong (Nihon U.), K. Abe, Y. Endo, K. Onda, M. Tashiro (Saitama U.), G. Sato, K. Nakazawa, T. Takahashi (ISAS/JAXA), R. Miyawaki, M. Kokubun, K. Makishima (Univ. of Tokyo) and the HXD-II team report: The short hard burst, GRB 060429 (Hurley et al., GCN 5039, Golenetskii et al., GCN 5067), triggered the Suzaku Wide-band All-sky Monitor (WAM) which is sensitive to an energy band of 50 keV - 5 MeV at 12:19:51 (UT). The observed light curve shows a single-peak structure with a duration (T90) of 0.11 seconds. The fluence in 100 - 1000 keV was 1.97 +- 0.17 X10^-6 erg/cm2. The 1-sec peak flux was 3.2 +- 0.3 photons/cm2/sec in the same energy range. Preliminary result shows that the time-averaged spectrum is well fitted by a single power law with a photon index of 1.07 +- 0.13. All the quoted errors are at statistical 90% confidence level. The WAM in-flight calibration is still under way, and systematic errors, such as the flux calibration uncertainties of about 20%, are not included in the errors. The WAM light curve of this event is available at http://www.astro.isas.ac.jp/suzaku/research/HXD-WAM/WAM-GRB/grb/grb_table.html Further detailed analysis and the refinement are in progress.