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').
10 results found.
- GRB 221016A: Swift-BAT refined analysis
- GRB 221016A: Swift/UVOT Detection
- GRB 221016A: Swift-XRT refined Analysis
- Konus-Wind detection of GRB 221016A
- GRB 221016A: Fermi GBM observation
- GRB 221016A: z-band upper limit, possible afterglow brightening
- GRB 221016A: Enhanced Swift-XRT position
- GRB 221016A: LCOGT Optical Afterglow Detection
- GRB 221016A: Swift detection of a burst
- GRB 221016A: Fermi GBM Final Real-time Localization