TITLE: GCN CIRCULAR NUMBER: 7930 SUBJECT: GRB 080625: Suzaku WAM observation of the prompt emission DATE: 08/07/03 03:43:57 GMT FROM: Takeshi Uehara at Hiroshima U T. Uehara, Y. Hanabata, Y. Fukazawa, T. Takahashi, C. Kira (Hiroshima U.), M. Ohno, M. Kokubun, M. Suzuki, T. Takahashi (ISAS/JAXA), K. Yamaoka, S. Sugita (Aoyama Gakuin U.), K. Onda, M. Tashiro, Y. Terada, Y. Urata, A. Endo, N. Kodaka, K. Morigami, T. Sugasahara, W. Iwakiri (Saitama U.), Y. E. Nakagawa, T. Tamagawa (RIKEN), T. Enoto, K. Nakazawa, K. Makishima (Univ. of Tokyo), E. Sonoda, M. Yamauchi, H. Tanaka, R. Hara (Univ. of Miyazaki), S. Hong (Nihon U.), on behalf of the Suzaku WAM team, report: The long GRB 080625 (SuperAGILE ; Marco et al., GCN 7903) was detected by the the Suzaku Wide-band All-sky Monitor (WAM) which covers an energy range of 50 keV - 5 MeV at 12:28:41 UT on 25 July 2008 (=T0). The observed light curve shows a single peak, starting at T0s, ending at T0+62s with a duration (T90) of about 62 seconds. The fluence in 100 - 1000 keV was 2.3(+1.3/-0.7) E-6 erg/cm^2. The 1-s peak flux measured from T0+33s was 0.4(+0.2/-0.3) photons/cm^2/s in the same energy range. Preliminary result shows that the time-averaged spectrum from T0-15s to T0+50s is well fitted by a single power-law with a photon index of 1.7 (+1.2/-0.8) (chi^2/d.o.f = 9.6/8) at the 120 - 500 keV bandpass. All the quoted errors are at statistical 90% confidence level, in which the systematic uncertainties are not included. The light curves with 1-sec time resolution for this burst will be appeared at: http://www.astro.isas.jaxa.jp/suzaku/HXD-WAM/WAM-GRB/grb/untrig/grb_table.html