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').
12 results found.
- GRB 190427A: CALET Gamma-Ray Burst Monitor detection
- GRB 190427A: Swift/UVOT Upper Limits
- GRB 190427A, Swift-BAT refined analysis
- GRB 190427A: Fermi GBM detection
- GRB 190427A: Lick/Nickel telescope optical observations
- GRB 190427A: MITSuME Akeno optical upper limits
- GRB 190427A: COATLI Optical Observations
- GRB 190427A: RATIR Optical and NIR Observations
- GRB 190427A: BOOTES-1 and BOOTES-5/JGT early follow-up observations
- GRB 190427A: NOT optical observations
- GRB 190427A: Swift-XRT observations
- GRB 190427A: Swift detection of a short burst