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').
6 results found.
- Konus-Wind detection of GRB 230919A
- IPN triangulation of GRB 230919A (short)
- GRB 230919A: Fermi GBM Observation
- GRB 230919A: Swift/BAT-GUANO detection of a possibly short burst outside the coded FOV
- GRB 230919A: AstroSat CZTI detection
- GRB 230919A: Fermi GBM Final Real-time Localization