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.
- GRB050326: Host Galaxy Candidates
- Konus-Wind observation of GRB 050326
- GRB 050326: Early observations with Swift-UVOT
- GRB 050326 XMM-Newton observation
- GRB 050326 : Planned XMM-Newton observation
- GRB 050326: Swift XRT Position
- GRB050326: optical limit 33min before GRB
- GRB 050326 BAT refined analysis
- GRB050326: delayed XRT observation
- Swift-BAT detection of a bright GRB 050326