GCN Circulars
GCN Circulars are rapid astronomical bulletins submitted by and distributed to community members worldwide. They are used to share discoveries, observations, quantitative near-term predictions, requests for follow-up observations, or future observing plans related to high-energy, multi-messenger, and variable or transient astrophysical events. See the documentation for help with subscribing to or submitting Circulars.
To navigate to a specific circular, enter the associated Circular ID (e.g. 'gcn123', 'Circular 123', or '123').
23 results found.
- GRB 231111A: Optical follow-up observations at Terskol, AbAO, Maidanak, Mondy, Assy
- GRB 231111A: Swift/UVOT Detection
- GRB 231111A: Swift-BAT refined analysis
- GRB231111A: MDM 2.4m Hiltner Telescope Observation
- GRB 231111A: Xinglong-2.16m optical observations
- GRB 231111A: Afterglow redshift from OSIRIS+/GTC
- GRB 231111A: TNG tentative redshift
- GRB 231111A NUTTelA-TAO / BSTI Early Measurements
- GRB 231111A: Leavitt Observatory optical observations
- GRB231111A: Optical follow-up observations with Mephisto
- GRB 231111A: GMG observation (correction)
- GRB 231111A: GMG observation upper limit
- GRB 231111A: Osservatorio Astronomico "Nastro Verde" optical observations with detection of an optical counterpart
- GRB 231111A: Swift-XRT refined Analysis
- GRB 231111A: Mondy optical observations
- GRB 231111A: GECAM-C detection of a long burst (correction)
- GRB 231111A: Enhanced Swift-XRT position
- GRB 231111A: GECAM-C detection of a long burst
- GRB231111A: YAHPT Observations
- GRB231111A: GIT confirmation of the optical afterglow
- GRB 231111A: MASTER OT earlier detection
- GRB 231111A: Nanshan/HMT optical observations
- GRB 231111A: Swift detection of a burst with an optical counterpart