R. Ricci and M. Smith, BeppoSAX Science Operation Center, Telespazio, Rome; P. Soffitta and L. Piro, Istituto Astrofisica Spaziale, CNR, Rome; P. Giommi and S. Rebecchi, BeppoSAX Science Data Center (SDC); J. M. Muller, Space Research Organization of the Netherlands, Utrecht, and SDC; and G. Gennaro, BeppoSAX Operational Control Center, report on behalf of the BeppoSAX team: "On Jan. 28.039583 UT, BeppoSAX WFC no. 2 detected an x-ray flare from a previously unknown source (now designated 1SAX J0104.5+5828). The event lasted about 100 s with approximately equal rise and decay time, and it had a peak flux of 0.2 Crab in the range 2--28 keV. No signal is present between 40 and 700 keV. The pulse profile appears to be not structured, with a flat-topped peak. The position is R.A. = 1h04m35s, Decl. = +58o28'.8 (equinox 2000.0) --- i.e., at a galactic latitude of about -4 deg. Due to the non- optimal satellite attitude configuration at the moment of the burst, the derived error radius is 10'. No catalogued x-ray sources are present in the error circle."
International Astronomical Union Circular
- Pub Date:
- January 1998