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"10 results found.
- GRB 120305A: D50 optical limits
- GRB 120305A: Swift spectral lag analysis
- GRB 120305A: Swift/UVOT Upper Limits
- GRB 120305A: EVLA deep limit on a radio counterpart
- GRB 120305A: Swift-XRT refined Analysis
- GRB 120305A: Enhanced Swift-XRT position
- GRB 120305A: Swift-BAT refined analysis
- GRB 120305A - Liverpool Telescope Observations
- GRB 120305A: MASTER-NET early optical observations
- GRB 120305A: Swift detection of a short burst