GCN Circulars
GCN Circulars are rapid astronomical bulletins submitted by and distributed to community members worldwide. They are used to share discoveries, observations, quantitative near-term predictions, requests for follow-up observations, or future observing plans related to high-energy, multi-messenger, and variable or transient astrophysical events. 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').
9 results found.
- Konus-Wind detection of GRB 210308A
- GRB 210308A: Mondy and AbAO optical observations
- GRB 210308A: Swift-BAT refined analysis
- GRB 210308A: Swift/UVOT Detection
- Swift GRB 210308A: Global MASTER-Net observations report
- GRB 210308A: Fermi GBM detection
- GRB 210308A: Nanshan/NEXT optical upper limits
- GRB 210308A: MITSuME Okayama optical upper limits
- GRB 210308A: Swift detection of a burst with an optical counterpart