GRB 230328B: Nanshan/NEXT optical upper limit
Abstract
We observed the field of GRB 230328B detected by Swift (Gropp et al., GCN 33527),using the NEXT-0.6m optical telescope located at Nanshan, Xinjiang, China. Observations started at 16:39:57 UT on 2023-03-28, i.e., 1.75 hr after the Swift/BAT trigger. The previously reported optical afterglow (e.g., Pankov et al., GCN 33528; Belkin et al., GCN 33530) is marginally detected in our stacked image. Preliminary photometry of the afterglow has r ~ 19.1 mag, calibrated by nearby PanSTARRS stars.
- Publication:
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GRB Coordinates Network
- Pub Date:
- March 2023
- Bibcode:
- 2023GCN.33534....1L