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"6 results found.
- Short-Hard GRB 070209: PROMPT Observations
- GRB 070209: Swift XRT refined analysis
- GRB 070209: Redshift of a galaxy in the error circle of XRT source
- GRB 070209: Swift XRT analysis
- GRB 070209, Swift-BAT refined analysis of the short hard burst
- GRB 070209: Swift detection of a short hard burst