GCN Circular 38028

A. S. Moskvitin, A. S. Vinokurov (SAO RAS), A. S. Pozanenko (IKI),
N. Pankov (IKI, HSE) report on behalf of the GRB follow-up team.

We observed the field of GRB 241026A (The Fermi GBM team, GCN 37894
Not found
 
 
;
Melandri et al., GCN 37896
Not found
 
 
, Li et al., GCN 37909
Not found
 
 
; Zhang et al.,
GCN 37921
Not found
 
 
; Zhang, Xiong and Wang GCN 37924
Not found
 
 
; Pal et al., GCN 37929
Not found
 
 
;
Barthelmy et al., GCN 37971
Not found
 
 
) with the 6-m telescope of SAO RAS
equipped with the focal reducer Scorpio-I on October 30,
17:38:47--18:14:14 UT (t_mid-T0 = 3.8014 d).

The OT (Moskvitin et al., GCNs 37899
Not found
 
 
, 37916
Not found
 
 
, 37953
Not found
 
 
; Watson et al.,
GCN 37900
Not found
 
 
; Zheng & Filippenko GCN 37903
Not found
 
 
; Shrestha et al., GCN 37913
Not found
 
 
;
Mo et al., GCN 37915
Not found
 
 
; Mohan et al., GCN 37918
Not found
 
 
; Izzo et al., GCN 37925
Not found
 
 
;
Wang et al., GCN 37928
Not found
 
 
, Rossi et al., GCN 37969
Not found
 
 
) is detected
in a stack image of  42 x 30 sec. The brightness of the OT is
R = 23.9 +/- 0.2, calibrated against nearby USNO-B1.0 stars
(R2 magnitudes) and not corrected for Galaxy extinction.