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GRB 230818A: further SAO RAS Zeiss-1000 observationsстатья
- Авторы: Moskvitin A.S., Goranskij V.P., Team GRB follow-up
- Журнал: GRB Coordinates Network, Circular Service
- Номер: 34495
- Год издания: 2023
- Первая страница: 1
- Последняя страница: 1
- Аннотация: We observed the field of GRB 230818A (Fermi GBM team, GCN 34478; Tohuvavohu et al., GCN 34479) with the 1-m telescope of SAO RAS Zeiss-1000 equipped with the CCD photometer. We obtained 4 x 300 sec. images in Rc band on August 19, 17:42:30--18:07:26 UT. The OT (Lipunov et al., GCNs 34476, 34477, 34481, 34482; Gompertz et al., GCN 34480; Moskvitin et al., GCN 34483; Malesani et al., GCN 34485; Siegel and Tohuvavohu, GCN 34486; Pankov et al., GCN 34487; Quadri and Strabla, GCN 34488; Klose et al., GCN 34491) is marginally detected with the brightness of R = 23.0 +/- 0.3 (t_mid - t0 = 0.76903 days). This preliminary photometry is based on nearby USNO-B1 stars (R2 mag). The magnitude of the OT is not corrected for MW extinction.
- Добавил в систему: Горанский Виталий Петрович