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GCN Circular 35592

Subject
IPN triangulation of GRB 240119A (short)
Date
2024-01-22T14:47:24Z (3 months ago)
From
Dmitry Svinkin at Ioffe Institute <svinkin@mail.ioffe.ru>
Via
legacy email
D. Svinkin, D. Frederiks, A. Ridnaia, A. Lysenko,
and T. Cline on behalf of the Konus-Wind 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

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

The bright, short-duration GRB 240119A
(Fermi-GBM detection: The Fermi GBM team, GCN 35583Not found
 
 
;
AstroSat-CZTI detection: Joshi et al.: GCN 35589Not found
 
 
;
GECAM-B detection: Zhang et al.: GCN 35591Not found
 
 
)
was detected by Fermi (GBM trigger 727378152), INTEGRAL (SPI-ACS),
Swift (BAT), Konus-Wind, AstroSat (CZTI), and GECAM-B
at about 62948 s UT (17:29:08).
The burst was outside the coded field of view of the BAT.

We have triangulated it to a preliminary, 3 sigma error box
whose coordinates are:
---------------------------------------------
  RA(2000), deg                 Dec(2000), deg
 ---------------------------------------------
 Center:
  359.940 (23h 59m 46s) -75.259 (-75d 15' 33")
 Corners:
  342.700 (22h 50m 48s) -82.193 (-82d 11' 33")
  343.891 (22h 55m 34s) -82.325 (-82d 19' 29")
    4.927 (00h 19m 42s) -67.683 (-67d 41' 00")
    4.404 (00h 17m 37s) -67.603 (-67d 36' 12")
 ---------------------------------------------
The error box area is 3.2 sq. deg, and its maximum
dimension is 15.4 deg (the minimum one is 12.5 arcmin).
The Sun distance was 62 deg.

This localization may be improved.

The IPN localization is consistent with, but reduces the area of,
the Fermi-GBM localizations.

A triangulation map and HEALPix FITS file are posted at
http://www.ioffe.ru/LEA/GRBs/GRB240119_T62945/IPN/

The Konus-Wind time history and spectrum will be given
in a forthcoming GCN Circular.