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 191101A: Swift-BAT refined analysis
- GRB 191101A: Swift/UVOT Upper Limits
- GRB 191101A: iTelescope optical limit
- GRB 191101A: Swift-XRT refined Analysis
- GRB 191101A: VIRT Optical Upper Limits
- GRB 191101A: Enhanced Swift-XRT position
- GRB 191101A: Prompt enhanced Swift-XRT position
- GRB 191101A: Swift detection of a burst