GCN Circulars
GCN Circulars are rapid bulletins submitted by and distributed to the community. 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').
Advanced Search
To narrow the search results, use advanced search syntax. This allows for specifying which circular field to search (submitter, subject, and/or body). For additional information, refer to the advanced search documentation.
Advanced Search Examples (click to copy):
subject:"Swift"body:"GRB"submitter:"Judith Racusin"9 results found.
- GRB220714B: UVOT detections
- GRB 220714B: Swift-BAT refined analysis
- GRB 220714B: Fermi GBM observation
- GRB 220714B: LCO Optical Observations
- GRB 220714B: Swift-XRT refined Analysis
- GRB 220714B: UVOT afterglow discovery
- GRB 220714B: Enhanced Swift-XRT position
- GRB 220714B: Swift detection of a burst
- GRB 220714B: Fermi GBM Final Real-time Localization