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').
18 results found.
- GRB 211023B: LBT likely spectroscopic redshift of the host galaxy
- GRB 211023B: Subaru optical observation
- GRB 211023B: MITSuME Akeno optical upper limits
- GRB 2121023B: 6 GHz VLA radio upper limit
- GRB 211023B: NUTTelA-TAO / BSTI Early Optical Limits (Preliminary)
- GRB 211023B: Mondy optical afterglow confirmation
- GRB 211023B: Gemini-North Optical Observations
- GRB 211023B: LDT Optical Afterglow Detection
- Possible Short GRB 211023B: CAHA 2.2m Detection
- GRB 211023B: Swift-BAT refined analysis
- GRB 211023B: BOOTES-4/MET and 1.5m OSN optical upper limit
- GRB 211023B: Swift/UVOT Detection
- GRB 211023B: RATIR Optical and NIR Upper Limits
- GRB 211023B: TSHAO optical observation
- GRB 211023B: Swift-XRT refined Analysis
- GRB 211023B: Enhanced Swift-XRT position
- Swift GRB 211023B: Global MASTER-Net observations report
- GRB 211023B: Swift detection of a possibly short burst with an optical counterpart