Skip to main content
Testing. You are viewing the public testing version of GCN. For the production version, go to
New Announcement Feature, Code of Conduct, Circular Revisions. See news and announcements

GCN Circular 384

BeppoSAX NFI Observation of GRB990705
1999-07-09T18:27:49Z (25 years ago)
Angelo Antonelli at Obs. Astro. di Roma <>
L. Amati and F. Frontera, ITESRE, CNR, Bologna,  L.A. Antonelli, Osservatorio 
Astronomico di Roma, G. Cusumano, IFCAI, CNR, G. Gandolfi and E. Costa,   
Palermo, M.R. Daniele, BeppoSAX SDC, Telespazio, Roma, and P. Giommi,
BeppoSAX SDC, ASI, Rome. on behalf of the BeppoSAX Team report:

"The BeppoSAX NFIs observed the region of GRB990705 (IAUC 7218) from
Jul 6.142 (11 hours after the BeppoSAX GRBM+WFC trigger) to Jul 8.096 UT
for a total MECS on source exposure time of 78 ksec.

A preliminary analysis of the data shows a strong and variable contamination 
of the field by stray radiation coming from LMC X-2, which lies just outside 
the detector field of view (52 arcmin from the center). A more refined 
analysis is required and at this stage we are not able to confirm the 
quick-look analysis detection reported in GCN #373.

This message may be cited."
Looking for U.S. government information and services? Visit