GRB 230805B: Iota Scorpii Observatory, La Spezia, Italy upper limit
Abstract
We imaged the field of GRB 230805B detected by SWIFT(trigger 11:23:51 UT) with the telescope GSO 16" of Iota Scorpii Observatory, La Spezia Italy Member of: UAI/SSV - Unione Astrofili Italiani/sezione stelle variabili, GRB section. GAD - Gruppo Astronomia Digitale. The observations started 550 min after the GRB trigger, at the end of twilight, with a Ritchey Cretien D=406 mm with reducer F/D=6,15. Weather conditions were very good. We co-added 6 exposures of 300 sec each. Start T0+ End T0+ R lim 550 min 581 min 20 We did not found any optical counterpart in the error box of the XRT candidate. Page et al. GCN 34339 Magnitudes were estimated with the Gaia EDR3 cat. and are not corrected for galactic dust extinction. 20.0 Reference: https://www.parcodellestelle.com/ The message may be cited.
- Publication:
-
GRB Coordinates Network
- Pub Date:
- August 2023
- Bibcode:
- 2023GCN.34377....1S