GCN Circular 42317
Subject
GRB 251007B: Swift-BAT refined analysis
Event
Date
2025-10-17T01:39:20Z (2 days ago)
From
Takanori Sakamoto at AGU <tsakamoto@phys.aoyama.ac.jp>
Via
Web form
C. B. Markwardt (GSFC), S. D. Barthelmy (GSFC), R. Gupta (GSFC),
H. A. Krimm (NSF), S. Laha (GSFC/UMBC), A. Y. Lien (U Tampa),
A. Melandri (INAF-OAR), M. J. Moss (GSFC), D. M. Palmer (LANL),
T. Parsotan (GSFC), D. Sadaula (GSFC/UMBC), T. Sakamoto (AGU)
(i.e. the Swift-BAT team):
Because BAT triggered GRB 251007B (trigger #1402467)
(Melandri, et al.GCN Circ. 42147) six minutes after GRB 251007A
(Ambrosi, et al. GCN Circ. 42146), no BAT event data was generated
on-board. Therefore, it is difficult to provide a detailed prompt
emission analysis. According to the 1 s rate data (15-350 keV),
the burst shows a double-peaked structure with a duration of ~25 sec.