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"10927 results found.
- GRB981220 B, R and I band observations
- GRB 981220 optical R and I observations
- GRB 981226 - Infrared Observations
- GRB 981226 optical observations
- BeppoSAX NFI Observation of GRB980425
- GRB980425 Optical Follow-up
- GRB980703: LOTIS observation at early times
- GRB 980703
- GRB980703
- GRB980703 optical followup
- SGR1627-41, BeppoSAX-GRBM detections
- GRB980613, BeppoSAX WFC positions
- GRB980519, BeppoSAX-WFC updated position
- GRB980519, BeppoSAX-WFC position
- BSAX Observations of GRB980425 field
- GRB 980425 optical observations
- GRB 980425 optical observations
- GRB 980425 optical observations
- GRB980329 optical observations
- GRB971214: Keck R & I-band Observations
- Optical Observations of the GRB 971227 field
- Optical Observations on GRB 971227
- GRB971227: Plaskett R-band observations
- GRB 971227: Optical clarifications
- GRB971227: LOTIS observations
- GRB 971214: KPNO Optical Observations
- Optical Observations of GRB 971214 at Keck