//////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 12108 SUBJECT: GRB 110705A: Fermi GBM detection DATE: 11/07/05 11:54:33 GMT FROM: Andreas von Kienlin at MPE A. von Kienlin (MPE) reports on behalf of the Fermi GBM Team: "At 03:37:11.94 UT on 05 July 2011, the Fermi Gamma-Ray Burst Monitor triggered and located GRB 110705A (trigger 331529833 / 110705151). The on-ground calculated location, using the GBM trigger data, is RA = 160.6, DEC = +24.0 (J2000 degrees, equivalent to 10h 42m, 24d 0'), with an uncertainty of 4.7 degrees (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 75 degrees. This burst was also independently detected by INTEGRAL SPI-ACS. The GBM light curve consists of one short spike with a duration (T90) of about 0.2 s (50-300 keV). The time-averaged spectrum from T0-0.016 s to T0+0.208 s is best fit by a Band function with Epeak = 1010 +90/-80 keV, alpha = -0.17 +/- 0.07, and beta = -3.0 +0.2/-0.4. The event fluence (10-1000 keV) in this time interval is (3.3 +/- 0.1)E-06 erg/cm^2. The 0.016-sec peak photon flux measured starting from T0+0.0 s in the 10-1000 keV band is 50 +/- 4 ph/s/cm^2. The spectral analysis results presented above are preliminary; final results will be published in the GBM GRB Catalog." //////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 12110 SUBJECT: IPN triangulation of short hard GRB 110705A DATE: 11/07/07 23:52:18 GMT FROM: Valentin Pal'shin at Ioffe Inst 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 on behalf of the Mars Odyssey and MESSENGER GRB teams, I. G. Mitrofanov, D. Golovin, M. L. Litvak, and A. B. Sanin, on behalf of the HEND-Odyssey GRB team, J. Goldsten on behalf of the MESSENGER GRNS GRB team, 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, 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 A. von Kienlin, X. Zhang, and A. Rau, on behalf of the INTEGRAL SPI-ACS GRB team, report: The short hard GRB 110705A (Fermi/GBM trigger 331529833: von Kienlin, GCN 12108) was also detected by Konus-Wind, INTEGRAL (SPI-ACS), Suzaku (WAM), MESSENGER (GRNS), Mars Odyssey (HEND), and Swift (BAT). The burst was outside the coded field of view of the BAT. We have triangulated it to a 3 sigma error box whose coordinates are: ----------------------------------------------- RA(2000), deg Dec(2000), deg ----------------------------------------------- Center: 156.024 (10h 24m 06s) +40.099 (+40d 05' 56") Corners: 155.925 (10h 23m 42s) +39.620 (+39d 37' 11") 156.230 (10h 24m 55s) +40.438 (+40d 26' 16") 156.122 (10h 24m 29s) +40.574 (+40d 34' 26") 155.820 (10h 23m 17s) +39.759 (+39d 45' 31") ----------------------------------------------- The error box area is 354 sq. arcmin. The maximum distance between the box corners is 0.97 deg. This error box may be improved. The GBM location (von Kienlin, GCN 12108) is 16.6 deg from the center of the IPN box. //////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 12111 SUBJECT: Konus-Wind observation of GRB 110705A DATE: 11/07/08 05:34:20 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 hard GRB 110705A (Fermi/GBM trigger 331529833 / 110705151: von Klienin, GCN 12108; localized by IPN: Golenetskii et al., GCN 12110) triggered Konus-Wind at T0=13029.942s UT (03:37:09.942) The burst light curve shows double-peaked pulse with a total duration of ~0.25 s. The emission is seen up to ~5 MeV. The Konus-Wind light curve of this GRB is available at http://www.ioffe.ru/LEA/GRBs/GRB110705_T13029/ As observed by Konus-Wind the burst had a fluence of (6.0 ± 1.0)x10-6 erg/cm2, and a 16-ms peak flux, measured from T0+0.144 s, of (3.7 ± 0.9)x10-5 erg/cm2/s (both in the 20 keV - 5 MeV energy range). The time-integrated spectrum of the burst (from T0 to T0+0.256 s) is best fitted in the 20 keV - 5 MeV range by the GRB (Band) model, for which: the low-energy photon index alpha = -0.14 (-0.28, +0.37), the high energy photon index beta = -2.7 (<-2.1), the peak energy Ep = 820(-146, +205) keV, chi2 = 20.9/30 dof. All the quoted results are preliminary. All the quoted errors are at the 90% confidence level. //////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 12114 SUBJECT: GRB 110705A: Suzaku WAM observation of the prompt emission DATE: 11/07/08 13:19:27 GMT FROM: Makoto Tashiro at Saitama U/Swift T. Yasuda, Y. Terada, M. Tashiro, W. Iwakiri, K. Takahara (Saitama U.), T. Uehara, Y. Hanabata, T. Takahashi, M. Mizuno, M. Ohno, Y. Fukazawa (Hiroshima U.), S. Sugita (Nagoya U.), K. Yamaoka (Aoyama Gakuin U.), M. Kokubun, T. Takahashi (ISAS/JAXA), Y. E. Nakagawa (Waseda U.), N. Ohmori, M. Akiyama, M. Yamauchi (Univ.of Miyazaki), Y. Urata, P. Tsai, C-J. Chuang (NCU), K. Nakazawa, K. Makishima (Univ.of Tokyo), on behalf of the Suzaku WAM team, report: The short GRB 110705A (Fermi Gamma-Ray Burst Monitor trigger 331529833, GCN12108; von Kienlin et al.) triggered the Suzaku Wide-band All-sky Monitor (WAM) which covers an energy range of 50 keV - 5 MeV at 03:37:11.933 UT (=T0). The observed light curve shows double-peaked structure starting at T0+0.008s, ending at T0+0.258s with a duration (T90) of about 0.25 seconds. The fluence in 100 - 1000 keV was 2.31(+0.10/-0.13) x 10^-6 erg/cm^2. The 1-s peak flux measured from T0 was 4.24 (+0.19/-0.20) photons/cm^2/s in the same energy range. Preliminary result shows that the time-averaged spectrum from T0 to T0+1s is well fitted by a power-law with exponential cutoff model: dN/dE ~ E^{-alpha} * exp(-(2-alpha)*E/Epeak) with alpha of 0.30 (+0.18/-0.10), and Epeak of 1030 (+139/-113) keV (chi^2/d.o.f. = 45/53). All the quoted errors are at statistical 90% confidence level. 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