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"12 results found.
- GRB 220511A: Swift-XRT afterglow detection
- Konus-Wind detection of GRB 220511A
- GRB 220511A: Fermi GBM observation
- GRB 220511A: Swift-XRT observations
- GRB 220511A: AstroSat CZTI detection
- GRB 220511A: BOOTES-2/TELMA optical upper limit
- GRB 220511A: Swift ToO observations
- GRB 220511A: Swift/BAT-GUANO arcminute localization
- Fermi GRB 220511A: Global MASTER-Net observations report
- GRB 220511A: AGILE detection
- GRB 220511A: BALROG localization (Fermi Trigger 673969321/ GRB 220511571)
- GRB 220511A: Fermi GBM Final Real-time Localization