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"8 results found.
- GRB 100316B: Swift-XRT refined analysis
- GRB 100316B: Swift/UVOT observations
- GRB 100316B: Enhanced Swift-XRT position
- GRB 100316B: Swift-BAT refined analysis
- GRB 100316B: VLT/X-shooter redshift
- GRB 100316B: Skynet/PROMPT Observations of Fading
- GRB 100316B: GROND Detection of the Optical/NIR Afterglow Candidate
- GRB 100316B: Swift detection of a burst with optical counterpart