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.
- GRB110414A: MITSuME Ishigakijima Optical upper limits
- GRB 110414A: GROND upper limits
- GRB110414A: MITSuME Okayama Optical upper limits
- GRB 110414A: Swift-BAT Refined Analysis
- GRB 110414A: Swift/UVOT Upper limits
- GRB 110414A: Swift-XRT refined Analysis
- GRB 110414A: Enhanced Swift-XRT position
- GRB 110414A : Faulkes Telescope North observations
- GRB 110414A: Swift detection of a burst