GCN Circular 6822
Subject
Recent SGR1806-20 Activity
Date
2007-09-24T20:45:04Z (17 years ago)
From
Kevin Hurley at UCBerkeley/SSL <khurley@ssl.berkeley.edu>
S. Golenetskii, R. Aptekar, E. Mazets, V. Pal'shin, D. Frederiks, P.
Oleynik, M. Ulanov and T. Cline, on behalf of the Konus-Wind and
Konus-A teams,
D. Palmer, S. Barthelmy, J. Cummings, N. Gehrels, and H. Krimm, on behalf
of the Swift-BAT team,
K. Hurley, A. von Kienlin, G. Lichti, A. Rau, D. Gotz, and S.
Mereghetti, on behalf of the INTEGRAL GRB team,
M. Feroci, P. Soffitta and Y. Evangelista, on behalf of the AGILE team,
K. Yamaoka, M. Ohno, Y.E. Nakagawa, Y. Fukazawa, T. Takahashi, M.
Tashiro, Y. Terada, T. Murakami, and K. Makishima, on behalf of the
Suzaku WAM GRB team,
report:
SGR1806-20 has become very active since September 14 (Barthelmy et al.
GCN 6804). The following is a partial list of bursts observed by some
of the IPN spacecraft (some weaker IBIS events did not trigger the INTEGRAL
Burst Alert Service). "Loc" means that the burst was localized by
triangulation to at least a relatively narrow annulus, or by the Swift
BAT or by IBIS. A "no" in this column means that the event has only
been localized to a relatively wide ecliptic latitude band.
INTEGRAL (GCN 6815) and Chandra target of opportunity observations of
this source are planned, and we encourage supporting observations at
all wavelengths.
Date Time Fluence Observed by Loc
20-200 (at least)
keV
-------------------------------------------------------------------
20070914 10:46:02 8.2E-7 BAT,IBIS,KW y
20070914 14:54:47 1.6E-5 KW,KA,SA y
20070914 14:58:44 1.0E-6 KW no
20070914 19:57:57 2.8E-6 BAT,KA y
20070914 21:03:36 4.5E-7 KW no
20070916 07:08:38 6.5E-7 IBIS,KW y
20070916 09:48:08 1.0E-6 IBIS,KW y
20070918 17:08:50 1.6E-5 KW,SA,SPI-ACS,SUZ y
20070919 10:01:51 1.5E-6 IBIS,KW y
20070919 15:13:04 6.5E-7 KW no
20070919 16:01:13 2.4E-6 BAT,KA,KW y
20070919 16:54:44 9.6E-7 KW no
20070919 19:34:50 9.0E-7 IBIS,KW y
20070919 20:45:10 ? BAT,IBIS y
20070920 04:30:11 1.9E-6 IBIS,KW y
20070921 07:11:59 1.4E-6 IBIS,KW y
20070921 11:45:35 4.0E-7 KW no
20070923 12:46:15 2.6E-6 KW,KA no
------------------------------------------------------------------
Some Abbreviations:
BAT: Swift Burst Alert Telescope
IBIS: Imager on Board the INTEGRAL Satellite
KA: Konus-A (Cosmos 2421)
KW: Konus-Wind
SA: Super-AGILE
SPI-ACS: Anticoincidence System of the INTEGRAL Spectrometer
SUZ: Suzaku WAM