GCN Circular 39130
Subject
GRB 240129A: further SAO RAS optical observations
Date
2025-02-03T14:10:39Z (7 days ago)
From
Moskvitin Alexander at SAO RAS <mosk@sao.ru>
Via
Web form
A. Moskvitin, R. Uklein, Yu. Sotnikova (SAO RAS),
A. Ghosh, S. Razzaque (CAPP, University of Johannesburg)
report on behalf of the GRB follow-up team.
We observed the field of GRB 250129A (Beardmore et al., GCN 39066;
Goad et al., GCN 39082; Frederiks et al., GCN 39116) with the SAO RAS
1-m telescope Zeiss-1000 equipped with the multi-mode focal reducer
MAGIC on 2025 February 2, 01:23:43--01:43:23 UT (t_mid - T0 = 3.8669
days). We obtained 3 x 300 sec. images in R band.
The OT (Francile et al., GCN 39065; GCN 39075, Beardmore et al.,
GCN 39066, Schneider et al., GCN 39071, Belkin et al., GCN 39072;
Izzo et al., GCN 39073; Izzo and Malesani, GCN 39074; Ghosh et al.,
GCN 39077; Schneider et al., GCN 39078; Brivio et al., GCN 39079;
Siegel and Beardmore, GCN 39085; Zheng and Filippenko, GCN 39090;
GCN 39102; Schlekat et al., GCN 39091; Antier et al., GCN 39096;
Odeh et al., GCN 39097; Ferro et al., GCN 39098; Bochenek and Perley,
GCN 39099; Malesani et al., GCN 39100; Romanov, GCN 39101;
Watson et al., GCN 39104; Vinko et al., GCN 39105; Akl et al.,
GCN 39106; Moskvitin et al., GCN 39107; Calapai GCN 39109;
Schlekat et al., GCN 39110; Gompertz et al., GCN 39114; Ror et al.,
GCN 39115; Lipunov et al., GCN 39119; Wu et al., GCN 39124;
Paek et al., GCN 39129) is clearly detected in our stacked image
with the brightness of R = 21.06 +/- 0.14 (calibrated against R2
magnitudes of nearby UNSO-B1 stars and not corrected for the MW
extinction).