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 201128A: Swift/UVOT Upper Limits
- GRB 201128A: Swift-BAT refined analysis
- GRB 201128A: Swift-XRT refined Analysis
- GRB 201128A: Enhanced Swift-XRT position
- GRB 201128A: DDOTI Observations
- GRB 201128A: Swift detection of a burst