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"9 results found.
- GRB 050717: PROMPT RcIc Observations
- GRB 050717: Additional LCO observations
- GRB050717
- Konus-Wind observation of GRB 050717
- GRB 050717: LCO near-IR observations
- Swift/UVOT Observations of GRB 050717
- GRB 050717: Swift-BAT refined analysis
- GRB 050717: Refined XRT analysis.
- Swift detection of GRB 050717