GCN Circular 35839

A. S. Moskvitin, O. I. Spiridonova (SAO RAS)
report on behalf of the GRB follow-up team.

We observed the field of GRB 240225B (Nakajima et al., GCN 35796
Not found
 
 
;
Evans, GCN 35797
Not found
 
 
; Joshi et al., GCN 35798
Not found
 
 
; D'Ai et al., GCN 35810
Not found
 
 
;
Kawakubo et al., GCN 35811
Not found
 
 
; Frederiks et al., GCN 35835
Not found
 
 
)
with the SAO RAS 1m telescope Zeiss-1000 equipped with CCD-photometer.
We obtained 8 x 300 sec frames in the Rc band on Feb. 29,
17:11:52--18:03:46 UT (t_mid - T0 = 3.8903 days).


The OT (Gompertz et al., GCN 35805
Not found
 
 
; Liu et al., GCN 35812
Not found
 
 
;
Malesani et al., GCN 35819
Not found
 
 
; Wise et al., GCN 35820
Not found
 
 
;
Gompertz & Malesani, GCN 35824
Not found
 
 
; Pankov et al., GCN 35826
Not found
 
 
;
Ror et al., GCN 35830
Not found
 
 
; Sasada et al., GCN 35831
Not found
 
 
; Schneider et al.,
GCN 35832
Not found
 
 
) is clearly detected in our stacked frame
with the brightness of R = 21.11 +/- 0.04.

The photometry is based on nearby SDSS stars (magnitudes converted
with Lupton 2005 equations).