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').
12 results found.
- GRB 181123B: ATCA 5/9 GHz rapid-response radio observation
- GRB 181123B: Keck further near-infrared imaging
- GRB 181123B: Insight-HXMT/HE detection
- GRB 181123B: Global MASTER Net optical inspection
- GRB 181123B: Swift-BAT lag analysis and search for extended emission
- GRB 181123B: Keck near-infrared imaging
- GRB 181123B: Gemini-North optical detection
- GRB 181123B: Swift/UVOT Upper Limits
- GRB 181123B: Swift-XRT refined Analysis
- GRB 181123B: Enhanced Swift-XRT position
- GRB 181123B: Prompt enhanced Swift-XRT position
- GRB 181123B: Swift detection of a short burst