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"7 results found.
- Konus-Wind observation of GRB 110808A
- GRB 110808A: Swift/UVOT Detection
- GRB 110808A: Swift-BAT refined analysis
- GRB 110808A: Swift-XRT refined Analysis
- GRB 110808A: VLT/X-shooter spectroscopy
- GRB 110808A: Enhanced Swift-XRT position
- GRB 110808A: Swift detection of a burst with optical counterpart