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GCN Circular 38165

Subject
IPN triangulation of GRB 241107A (short/hard)
Date
2024-11-11T11:39:25Z (23 days 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 HEND/Mars Odyssey team,

D. Svinkin, D. Frederiks, A. Lysenko, A. Ridnaia,
and T. Cline on behalf of the Konus-Wind team,

S. Barthelmy, J. Cummings, H. Krimm, D. Palmer, and A. Tohuvavohu
on behalf of the Swift-BAT team,

Y. Zhang, C. Wang, S. Xiong, J. Wei, and B. Cordier
on behalf of the SVOM-GRM team,

A. Goldstein, M. S. Briggs, C. Wilson-Hodge,
and E. Burns on behalf of the Fermi GBM team,

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 hard-spectrum, short-duration GRB 241107A
(SVOM-GRM detection: Wang et al., GCN 38125Not found
 
 
;
INTEGRAL-IBIS/PICsIT detection: Rodi et al., GCN 38164Not found
 
 
)
was detected by SVOM (GRM), Konus-Wind, INTEGRAL (SPI-ACS),
and Swift (BAT) at about 84600 s UT (23:30:00).
The burst was inside the coded field of view of the BAT, but
there was no BAT trigger.

We have triangulated it to a preliminary, 
3 sigma error box, whose coordinates are:
 ---------------------------------------------
  RA(2000), deg                 Dec(2000), deg
 ---------------------------------------------
 Center:
  113.377 (07h 33m 30s) -22.582 (-22d 34' 56")
 Corners:
  107.205 (07h 08m 49s) -27.689 (-27d 41' 21")
  114.251 (07h 37m 00s) -21.868 (-21d 52' 04")
  117.499 (07h 50m 00s) -18.325 (-18d 19' 30")
  112.449 (07h 29m 48s) -23.318 (-23d 19' 03")
 ---------------------------------------------
The error box area is 1.13 sq. deg, and its maximum
dimension is 13.3 deg (the minimum one is 9 arcmin).
The Sun distance was 100 deg.

This localization may be improved.

A triangulation map and HEALPix FITS file are posted at
http://www.ioffe.ru/LEA/GRBs/GRB241107_T84602/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.