GCN Circular 38399
Subject
IPN triangulation of GRB 241128B
Event
Date
2024-11-30T21:38:39Z (2 years ago)
From
Dmitry Svinkin at Ioffe Institute <svinkin@mail.ioffe.ru>
Via
Web form
A.S. Kozyrev, D.V. Golovin, M.L. Litvak, I.G. Mitrofanov, and A.B. Sanin
on behalf of the MGNS/BepiColombo and HEND/Mars Odyssey teams,
J. Benkhoff on behalf of the BepiColombo team,
D. Svinkin, D. Frederiks, A. Ridnaia, A. Lysenko,
and T. Cline on behalf of the Konus-Wind team,
E. Burns on behalf of the IPN,
E. Bozzo and C. Ferrigno, on behalf of the INTEGRAL SPI-ACS GRB team,
and
W. Boynton, C. Fellows, K. Harshman, H. Enos, R. Starr,
and A.S. Gardner on on behalf of the GRS-Odyssey GRB team,
report:
The bright, long-duration GRB 241128B
(SVOM-GRM detection: Xue et al., GCN 38389)
Konus-Wind, INTEGRAL (SPI-ACS), SVOM (GRM), Mars-Odyssey (HEND),
and BepiColombo (MGNS), at about 19346 s UT (05:22:26).
We have triangulated it to a preliminary, 3 sigma error region
whose area is 880 sq. arcmin, and its maximum
dimension is 7.9 deg (the minimum one is 2.1 arcmin).
This localization may be improved.
A triangulation map and HEALPix FITS file are posted at
http://www.ioffe.ru/LEA/GRBs/GRB241128_T19346/IPN
The HEALPix triangulation maps are in units of probability density.
The Konus-Wind time history and spectrum will be given
in a forthcoming GCN Circular.