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').
2808 results found.
- GRB 001109: deep JHK upper limits
- The Likely Optical/Infrared Afterglow of GRB 001011
- SGR 1806-20 burst activity
- GRB 000418: Detection of the Host Galaxy
- X-ray Afterglow of GRB 000529
- IR observations of GRB991216
- BeppoSAX NFI Observation of GRB991106
- GRB980703: Radio transient