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.
- RBO GRB 050714A and GRB 050716 observations
- GRB 050716; J-band observations
- GRB 050716 - UKIRT identification of candidate afterglow
- Swift UVOT Observations of GRB 050716
- GRB 050716: Refined XRT analysis.
- GRB 050716: Lulin B and R band optical observations
- GRB050716, optical observation
- GRB 050716: Optical Observations
- Swift/BAT detection of GRB 050716