//////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 15005 SUBJECT: GRB 130715A: Fermi GBM detection DATE: 13/07/16 16:16:04 GMT FROM: Andrew Collazzi at NASA/MSFC/ORAU Andrew C. Collazzi (NASA/ORAU) reports on behalf of the Fermi GBM Team: "At 21:44:09.64 UT on 15 July 2013, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 130715A (trigger 395617452 / 130715.906). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 287.4, Dec = -31.1 (J2000 degrees, equivalent to J2000 19h 9m, -31d 3'), with a statistical uncertainty of 1.0 degree (radius, 1-sigma containment, statistical only; there is additionally a systematic error which is currently estimated to be 2 to 3 degrees). The angle from the Fermi LAT boresight is 96 degrees. The trigger occurred during a nadir pointing maneuver of the Fermi spacecraft. The GBM light curve shows single continuous emission with a duration (T90) of about 48 s (50-300 keV). The peak flux during this interval is 7.75 +/- 0.31 ph/s/cm^2. The time-averaged spectrum from T0+0.00 to T0+61.44 s is best fit by a Band function with Epeak = 314.60 +/- 12.40, alpha = -0.58 +/- 0.03, beta = -2.44 +/- 0.12. The fluence (10-1000 keV) in this time interval is (4.7 +/- 0.061)E-05 erg/cm^2. The spectral analysis results presented above are preliminary; final results will be published in the GBM GRB Catalog." //////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 15014 SUBJECT: GRB 130715A: Suzaku WAM observation of the prompt emission DATE: 13/07/22 08:37:22 GMT FROM: Makoto Tashiro at Saitama U/Swift Y. Ishida, M. Tashiro, Y. Terada, T. Yasuda, H. Ueno, S. Sugimoto (Saitama U.), M. Ohno, K. Takaki, T. Kawano, R. Nakamura, S. Furui, Y. Fukazawa (Hiroshima U.), M. Yamauchi, N. Ohmori, M. Akiyama (Univ. of Miyazaki), K. Yamaoka (Nagoya U.), S. Sugita (Ehime U.), Y. E. Nakagawa, M. Kokubun, T. Takahashi (ISAS/JAXA), W. Iwakiri(RIKEN), Y. Hanabata (ICRR), Y. Urata (NCU), K. Nakazawa, K. Makishima (Univ. of Tokyo) on behalf of the Suzaku WAM team, report: The long GRB 130715A (Andrew et al GCN15005) was detected by the the Suzaku Wide-band All-sky Monitor (WAM) which covers an energy range of 50 keV - 5 MeV at 21:44:38.377 UT (=T0). The observed light curve shows double-peaked structure starting at T0-30s, ending at T0+62s with a duration (T90) of about 46 seconds. The fluence in 100 - 1000 keV was 3.38(+0.31/-0.27)x10^-5 erg/cm^2. The 1-s peak flux measured from T0s was 2.66(+0.49/-1.36) photons/cm^2/s in the same energy range. Preliminary result shows that the time-averaged spectrum from T0-30s to T0+62s is well fitted by a power-law with exponential cutoff model : dN/dE ~ E^{-alpha} * exp(-(2-alpha)*E/Epeak) with alpha 1.66(+0.31/-0.65), and Epeak 527(+429/-274) keV (chi^2/d.o.f. = 10.2/13). All the quoted errors are at statistical 90% confidence level, in which the systematic uncertainties are included. The light curves for this burst will be available at: http://www.astro.isas.jaxa.jp/suzaku/HXD-WAM/WAM-GRB/grb/trig/grb_table.html