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GCN 220521A: SAO RAS optical observationsстатья
- Авторы: Goranskij V.P., Moskvitin A.C.
- Журнал: GRB Coordinates Network, Circular Service
- Номер: 32082
- Год издания: 2022
- Первая страница: 1
- Последняя страница: 1
- Аннотация: We observed the field of the GRB 220521A (Dichiara et al., GCN 32076; Evans, GCN 32077) with the SAO RAS 1-m telescope Zeiss-1000 + CCD-photometer. The observations started 16.6 minutes after the trigger. We obtained 200 sec. exposures in V, Rc, Ic filters. The OT (Malesani & Pursimo, GCN 32078; Fynbo et al., GCN 32079) is clearly detected in Ic and Rc bands (with the brightness of I = 17.82 +/- 0.04; R = 20.3 +/- 0.2) and not detected in V band down to the limiting magnitude of V_lim ~ 21.4 (T_mid-T0 = 22.8 min). Preliminary photometry is based on nearby stars of PS1 catalogue, gri to V, R, I by Lupton,2005 transformations.
- Добавил в систему: Горанский Виталий Петрович