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').
8 results found.
- GRB 180728A: Fermi GBM observation
- GRB 170728A: 15 GHz upper limits from AMI
- GRB 170728A: Swift/UVOT Detection
- GRB 170728A: LCO observations
- GRB 170728A: Swift-XRT refined Analysis
- GRB 170728A: Swift-BAT refined analysis
- GRB 170728A: Enhanced Swift-XRT position
- GRB 170728A: Swift detection of a burst