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 100528A
- GRB 100528A: Faulkes Telescope North Detection
- GRB 100528A: GROND detection in all bands
- GRB 100528A: NOT optical observation
- Swift UVOT and UVOT-enhanced XRT position for GRB 100528A
- GRB 100528A: Fermi GBM observation
- GRB 100528A: SuperAGILE Localization of a Long GRB