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"10 results found.
- GRB 261017A: Swift-BAT refined analysis
- GRB 261017A: a short minimum variability timescale compatible with a compact object merger origin
- GRB 261017A: J band upper limit by the SYSU 80cm infrared telescope
- GRB 261017A : MITSuME Akeno optical upper limits
- GRB 261017A: Swift-XRT refined Analysis
- GRB 261017A: Nanshan/NEXT optical upper limit
- GRB 261017A: Enhanced Swift-XRT position
- GRB 261017A: Fermi GBM Observation
- GRB 261017A: Swift detection of a burst
- GRB 261017A: Fermi GBM Final Real-time Localization