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"13 results found.
- GRB 071117: VLT observations and probable redshift
- GRB 071117: Swift-XRT revised position
- Konus-Wind and Konus-A observations of GRB 071117
- Swift/UVOT upper limits for GRB 071117
- GRB 071117: Gemini Optical Afterglow Discovery
- GRB 071117: TAROT La Silla observatory optical observations
- GRB 071117: Gemini Observations
- GRB 071117: Las Campanas optical observations
- GRB 071117: Swift-XRT refined analysis
- GRB 071117, Swift-BAT refined analysis
- GRB 071117: Swift/XRT position
- GRB 071117: Initial Swift/UVOT observations
- GRB 071117: Swift detection of a bright burst