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.
- GRB 180510B: Swift-XRT refined Analysis
- GRB 180510B: Swift-BAT refined analysis
- GRB 180510B: VLT/X-shooter observations
- GRB 180510B: GROND detection in all bands
- GRB 180510B: TAROT La Silla observatory optical observations
- GRB 180510B: Enhanced Swift-XRT position
- GRB 180510B: Swift detection of a burst with an optical counterpart