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GCN Circular 35657

Subject

IPN triangulation of GRB 240124B

Date

2024-02-02T14:26:58Z (3 months ago)

From

Anna Ridnaia at Ioffe Institute <ridnaia@mail.ioffe.ru>

Via

Web form

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

E. Bozzo and C. Ferrigno, on behalf of the INTEGRAL SPI-ACS GRB team,

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

and 

G. Waratkar (IITB), J.Joshi (IUCAA), A. Vibhute (IUCAA),
V. Bhalerao (IITB), D. Bhattacharya (Ashoka University/IUCAA),
A. R. Rao (IUCAA/TIFR), and S. Vadawale (PRL)
on behalf of the Astrosat-CZTI team,

report:

The long-duration GRB 240124B
(AstroSat CZTI detection: Joshi et al., GCN 35636Not found
 
 
)
was detected by Konus-Wind, INTEGRAL (SPI-ACS),
Swift (BAT), and AstroSat (CZTI) 
at about 76474 s UT (21:14:34).
The burst was outside the coded field of view of the BAT.

We have triangulated this GRB to the following annuli:
---------------------------------------------------
annulus         R.A.     Dec.     R     dR (3sigma)
                (deg)    (deg)   (deg)     (deg)
---------------------------------------------------
Konus-SPI-ACS   114.536  21.719  79.082  2.281
Konus-BAT       112.129  19.162  79.550  1.622
---------------------------------------------------

The annuli combined with the KW ecliptic latitude response
give 254.7 sq.deg (3 sigma) localization region.

A triangulation map and HEALPix FITS file are posted at
http://www.ioffe.ru/LEA/GRBs/GRB240124_T76473/IPN

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