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GCN Circular 2763

Very strong outburst from SGR 1806-20 detected with INTEGRAL
2004-10-05T14:49:51Z (20 years ago)
Sandro Mereghetti at IASF/CNR <>
S. Mereghetti, D. Gotz (IASF-Milano), J.Borkowski (CAMK-Torun), M.Beck
(ISDC-Versoix) on behalf of the IBAS Localization Team and F.I.Mirabel
(SAp-Saclay) on behalf of the INTEGRAL Science Working Team report:

A strong increase in the activity of SGR 1806-20 has been detcted by IBAS
starting at 13:57 UT of October 5.  The activity consists of an
approximately 6 min long, multipeaked outburst, followed by a few shorter

During the peaks of the long outburst the counting rate in the IBIS/ISGRI
detector saturates the available telemetry.

Analysis is in progress to estimate the  event fluence and spectrum.

Rapid observations at other wavelengths are encouraged.

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