Gamma-ray Burst 010518

(All information courtesy of the instrument teams.)

Previous IAU Circulars

• none

• GCN notice #1062
  C. Guidorzi and F. Frontera, Universita' di Ferrara, Ferrara, S. Granata and F. Verrecchia, BeppoSAX Science Operation Center (SOC), Rome, J. Heise, Space Research Organization Netherlands (SRON), Utrecht, and J.J.M. in' t Zand, Astronomical Institute, Utrecht University and SRON, L. Piro and G. Gandolfi, Istituto di Astrofisica Spaziale del CNR, Rome.
  The BeppoSAX Gamma Ray Burst Monitor (GRBM) and the Wide Field Camera (WFC) unit 2 observed the GRB 010518 on May 18.280046 UT. The burst, that was very faint and detected only by ground trigger logic, required a careful off-line analysis. The event detected by the GRBM shows an irregular single pulse profile with a time duration of 25 s and a peak count rate of 210+- 40 c/s corresponding to (1.3 +- 0.3)x10^-7 erg/cm^2 s in the 40-700 keV energy band. In the WFC, the duration is about 30 s and the peak flux is 0.7 Crab (2-26 keV). The centroid position of the X-ray counterpart from the WFC image is R.A. = 10h46m43.7s, Dec = -57d47'36.7" (equinox 2000.0) with an error radius of 5'. A follow-up observation with BeppoSAX narrow-field instrument has not been performed.