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 170906A: Insight-HXMT detection
- GRB 170906A CALET Gamma-Ray Burst Monitor detection
- Konus-Wind observation of GRB 170906A
- GRB 170906A: AstroSat CZTI(Veto) detection
- GRB 170906A: Swift/UVOT Detection
- GRB 170906B: Swift-BAT refined analysis
- GRB 170906A: Fermi GBM detection
- GRB 170906A: Swift-BAT refined analysis
- GRB 170906A: Swift-XRT refined Analysis
- GRB 170906A: MASTER-OAFA (Argentina) early automatic OT detection
- GRB 170906A: Fermi-LAT detection
- GRB 170906A: REM optical/NIR observations
- GRB 170906A: Enhanced Swift-XRT position
- GRB 170906A: Swift detection of a burst with an optical afterglow