GRB 201020B: Konkoly Obs. optical detection
Abstract
We observed the field of GRB 201020B (Fermi team, GCN 28702; Lipunov et al. GCN 28704; Malacaria and Meegan, GCN 28710; Ursi et al. 28714; Arimoto et al., GCN 28716; Lipunov et al., GCN 28718; Xu et al., GCN 28719; Ridnaia et al., GCN 28723; Belkin et al., GCN 28725; Sbarufatti et al., GCN 28740; Breeveld et al., GCN 28743) with the 0.8m RC80 robotic telescope at Piszkesteto Mountain Station of Konkoly Observatory through SDSS r' and i' filters (exposure time 3 x 300 sec per filter) on 2020 Oct 21.807 UT (MJD 59143.807; 25.8 hours = 92880 s after the trigger). The frames were tied to PS1-photometry of local stellar sources. An optical afterglow of the GRB has been detected with the following AB-magnitudes: r' = 20.869 +/- 2.311 AB mag i' = 19.368 +/- 0.696 AB mag which are consistent with previous detections of the fading afterglow.
- Publication:
-
GRB Coordinates Network
- Pub Date:
- October 2020
- Bibcode:
- 2020GCN.28750....1V