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').
22 results found.
- GRB 170519A: 15 GHz upper limits from AMI
- GRB 170519A: TShAO and AbAO optical observations
- GRB 170519A: Mondy optical observations
- GRB 170519A: CrAO optical observations
- GRB 170519A: ISON/Multa optical observations
- GRB 170519A: MITSuME Akeno Optical Observation
- GRB 170519A: Watcher optical observations
- GRB 170519A: Continued RATIR Optical and NIR Observations
- GRB 170519A: MITSuME Okayama Optical Observation
- GRB 170519A: NOT optical observations
- GRB 170519A: Redshift from GTC/OSIRIS
- GRB170519A, Swift-UVOT Detection
- GRB 170519A: BOOTES-5/JGT early optical detection
- GRB 170519A: KAIT Optical Observations
- GRB 170519A: Swift-XRT refined Analysis
- GRB 170519A: iTelescope T11 optical observations
- GRB 170519A: Swift-BAT refined analysis
- GRB 170519A: Weihai optical observations
- GRB 170519A: RATIR Optical and NIR Observations
- GRB 170519A: optical observations
- GRB 170519A: Enhanced Swift-XRT position
- GRB 170519A: Swift detection of a burst with an optical counterpart