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.
- GRB 241120A: GRBAlpha detection
- Konus-Wind detection of GRB 241120A
- GRB 241120A: CALET Gamma-Ray Burst Monitor detection
- GRB 241120A: Mondy and AbAO optical observations
- GRB 241120A: Fermi GBM Observation
- GRB 241120A: Fermi GBM Final Real-time Localization