GCN Circular 45678
Subject
Swift GRB 260921A: MASTER OT J094129.58+025052.5 possible optical counterpart detection with host galaxy (z=1.3)
Event
Date
2026-09-21T10:29:29Z (a day ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>
Via
email
J. Segura,F.Podesta, C.Francile, R.Podesta, E. Gonzalez (OAFA, SJNU),
V.Lipunov, I.Panchenko, P.Balanutsa, K.Zhirkov,.Gorbovskoy,
G.Antipov, N.Tiurina, Ya.Kechin, V.Senik, A.Chasovnikov, V.Topolev,D.Vlasenko,
A.Sankovich, I.Gorbunov, V.Fedorova, A.Telnova (Lomonosov MSU),
N.Budnev, O.Gress (ISU),
D.Buckley (SAAO),
A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory),
A. Gabovich (Blagoveschensk Educational StateUniversity)
R.Rebolo (The Instituto de Astrofisica de Canarias),
L.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez,J.Martinez,A.R.Corella,
J.Tanori, L. Villalobos, L.H.Rodriguez (INAOE, Guillermo Haro Astrophysics
Observatory)
MASTER-OAFA robotic telescope of MASTER Global Robotic Net[1-4]
discovery MASTER OT J094129.58+025052.5 at 09 30 32 UT with error +-4"., with ~14 mag unfiltered. There is galaxy at z=1.3 (LEGACY catalog}.
[1] Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L
[2] Lipunov et al. 2022, Universe, Vol. 8(5), id.271
[3] Lipunov et a. 2019, ARep, vol.63, 293
[4] Lipunov et al. 2023, Astronomical Robotic Networks and Operative Multichanel
Astrophysics,Lomonosov MSU PRESS, 591pp.
http://www.pereplet.ru/lipunov/625.html#625