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').
19 results found.
- Konus-Wind detection of GRB 240204A
- Fermi-LAT gamma-ray observations of IceCube-240204A
- GRB240204A: Swift/UVOT Upper Limits
- GRB 240204A: AstroSat CZTI detection
- GRB 240204A: Mondy optical afterglow observations
- GRB 240204A : OHP/T193/T120 optical afterglow fading detection
- GRB 240204A: Swift-BAT refined analysis
- GRB 240204A: Fermi GBM Observation
- GRB 240204a: Liverpool Telescope optical afterglow detection
- GRB 240204A: Osservatorio Astronomico Nastro Verde upper limit
- IceCube-240204A: Upper limits from a search for additional neutrino events in IceCube
- GRB 240204A: optical afterglow detection with LCOGT 1m telescopes at Sutherland and Teide Observatories
- GRB 240204A: Montarrenti Observatory optical observations
- GRB 240204A: Enhanced Swift-XRT position
- GRB 240204A: Mondy optical afterglow candidate
- Fermi GRB 240204A: Global MASTER-Net observations report
- GRB 240204A: Swift detection of a burst
- IceCube-240204A - IceCube observation of a high-energy neutrino candidate track-like event
- GRB 240204A: Fermi GBM Final Real-time Localization