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').
10 results found.
- GRB 180620B: AstroSat CZTI detection
- GRB 180620B: Swift/UVOT Detection
- Konus-Wind observation of GRB 180620B
- GRB 180620B: VLT/X-shooter redshift
- GRB 180620B: Swift-BAT refined analysis
- GROND observations of GRB 180620B
- GRB 180620B: Swift-XRT refined Analysis
- GRB 180620B: Enhanced Swift-XRT position
- GRB 180620B: Fermi GBM detection
- GRB 180620B: Swift detection of a burst with an optical counterpart