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.
- Radio observation of GRB 081121 with ATCA
- Konus-Wind observation of GRB 081121
- GRB 081121, SMARTS optical/IR afterglow observations
- GRB081121: Fermi GBM detection
- GRB081121: Refined Swift/UVOT observations
- GRB 081121: Swift-XRT refined analysis
- GRB 081121: Magellan Redshift
- GRB 081121: Enhanced Swift-XRT position
- GRB 081121: GROND observations
- GRB 081121: Swift-BAT refined analysis
- GRB 081121: Swift detection of a burst
- GRB 081121: ROTSE-III Detection of Optical Counterpart