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 090831C BAT refined analysis
- GRB 090831C: GROND upper limits
- GRB090831C: Swift/UVOT upper limits
- GRB 090831C: Swift XRT Refined Analysis
- GRB 090831C: Enhanced Swift-XRT position
- GRB 090831C: Swift detection of a burst