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"22 results found.
- GRB 160509A: 15 GHz upper limits from AMI
- GRB 160509A: Further VLA Observations
- GRB 160509A MASTER-NET observations
- GRB 160509A: CALET Gamma-Ray Burst Monitor detection
- GRB 160509A: non-observation of VHE emission with HAWC
- GRB 160509A: TLS Tautenburg Afterglow Detection
- GRB 160509A: Further Swift/UVOT Observations
- GRB 160509A Gemini North redshift
- Konus-Wind observation of GRB 160509A
- GRB 160509A: DCT Imaging / Afterglow Confirmation
- GRB 160509A: MAXI/GSC refined analysis
- GRB 160509A: VLA Detection
- GRB 160509A: Fermi-LAT refined analysis
- GRB 160509A: Swift/UVOT Upper Limit
- GRB 160509A: Fermi GBM Detection
- GRB 160509A Gemini North candidate afterglow
- GRB 160509A: optical observations
- GRB 160509A: Swift-XRT afterglow detection
- GRB 160509A: Preliminary XRT positon
- GRB 160509A: Tiled Swift observations
- Correction to GCN 19404; GRB 160509A: MAXI/GSC detection
- GRB 160509A: Fermi-LAT prompt detection of a very bright burst