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.
Search for Circulars by submitter, subject, or body text (e.g. 'Fermi GRB').
To navigate to a specific circular, enter the associated Circular ID (e.g. 'gcn123', 'Circular 123', or '123').
To navigate to a specific circular, enter the associated Circular ID (e.g. 'gcn123', 'Circular 123', or '123').
14 results found.
- GRB 171102B: AbAO optical upper limit
- GRB 171102B: TShAO optical upper limit
- GRB 170822A: 15 GHz upper limits from AMI
- GRB 170822A: AstroSat CZTI detection
- Konus-Wind observation of GRB 170822A
- GRB 170822A: RATIR Optical and NIR Observations
- GRB 170822A: AbAO optical upper limit
- GRB 170822A: MITSuME Akeno Optical Observation
- GRB 170822A: Swift-BAT refined analysis
- GRB 170822A: Swift/UVOT Upper Limits
- GRB 170822A: Swift-XRT refined Analysis
- GRB 170822A: Enhanced Swift-XRT position
- GRB 170822A:BOOTES-5/JGT optical afterglow candidate
- GRB 170822A: Swift detection of a burst