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').
9 results found.
- GRB 180720C: BOOTES-2/TELMA optical observations
- GRB 180720C: MASTER optical observation
- GRB 180720C: Swift-XRT refined Analysis
- GRB 180720C: Swift-BAT refined analysis
- GRB 180720C: Swift/UVOT Upper Limits
- GRB 180720C: LT observations
- GRB 180720C: Fermi GBM observation
- GRB 180720C: Enhanced Swift-XRT position
- GRB 180720C: Swift detection of a burst or possible Galactic Transient