GCN Circular 9025
Subject
SGR J1550-5418: two Fermi GBM triggers on March 22
Date
2009-03-24T04:34:35Z (15 years ago)
From
Alexander van der Horst at NASA/MSFC <Alexander.J.VanDerHorst@nasa.gov>
A.J. van der Horst (NASA/MSFC/ORAU) and C. Kouveliotou (NASA/MSFC)
report on behalf of the Fermi GBM team:
"The Fermi Gamma-Ray Burst Monitor (GBM) has triggered on two bursts from
SGR J1550-5418 on March 22. The first occurred at 18:56:23.75 (trigger
259440985 / 090322789) and the second at 22:39:15.75 UT (trigger 259454357
/ 090322944). The latter burst was very bright, and also detected by
SuperAGILE (GCN 9014). Both bursts were independently detected by INTEGRAL
SPI-ACS.
These are the first GBM triggers after the second active period of SGR
J1550-5418 that ended on February 24, 2009. A complete list of the GBM
triggers from this SGR can be found at:
http://gammaray.nsstc.nasa.gov/gbm/science/magnetars."