GRB 990704: the most X-ray rich BeppoSAX gamma-ray burst

M. Feroci, L. A. Antonelli, P. Soffitta +8

We present the X- and $\gamma$-ray detection of GRB 990704 and the discovery and study of its X-ray afterglow, 1SAX J1219.5-0350. Two pointed BeppoSAX observations with the narrow field…