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').
15 results found.
- GRB 160927A: GTC observations
- GRB 160927A: CALET Gamma-Ray Burst Monitor ground detection
- GRB 160927A: 15 GHz upper limits from AMI
- GRB 160927A: Magellan imaging
- GRB 160927A: Swift/UVOT Upper Limits
- GRB 160927A: Bassano Bresciano Observatory optical upper limit
- GRB 160927A: Swift-BAT refined analysis
- GRB 160927A: NOT optical observations
- GRB 160927A: GROND Observations
- GRB 160927A: Swift-XRT refined Analysis
- GRB 160927A: Enhanced Swift-XRT position
- GRB 160927A: TNG optical afterglow confirmation
- GRB 160927A: RTT150 optical afterglow candidate
- GRB 160927A: Prompt enhanced Swift-XRT position
- GRB 160927A: Swift detection of a short hard burst