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.
To navigate to a specific circular, enter the associated Circular ID (e.g. 'gcn123', 'Circular 123', or '123').
32 results found.
- Comparison of ICSP VLF observation of GRB 090424 with satellite observations
- GRB 090424: WSRT Radio Observations
- GMRT observation of GRB 090424 afterglow
- GRB 090423: optical limit
- GRB 090424: optical observations
- GRB 090424, SMARTS optical/IR afterglow monitoring
- GRB 090424: YNAO-GMG observations
- GRB 090424 : Multiband Optical observation from Nainital
- GRB 090424: Continued R-band monitoring
- GRB 090424: Suzaku WAM observation of the prompt emission
- GRB 090426: GROND Observations of the Optical/NIR Afterglow
- Detection of bright radio afterglow of GRB 090424 with the VLA
- GRB 090424: MASTER-Net prompt optical limit
- GRB 090424: WHT ISIS spectroscopy
- GRB 090424 : Lulin 1m telescope optical observations
- GRB 090424: THO optical observations
- GRB 090424: GROND Observations of the Optical/NIR Afterglow
- GRB 090424 Gemini-South Redshift
- GRB 090424 : TAOS optical detection
- GRB 090424 optical observations
- GRB 090424: Liverpool Telescope observations
- GRB 090424: Swift-XRT refined analysis
- GRB 090424: Optical observations from 1.23m CAHA
- Swift/UVOT observations of GRB 090424
- GRB 090424: MASTER-Net prompt optical observations
- GRB 090424: Enhanced Swift-XRT position
- GRB 090424: Swift-BAT refined analysis
- GRB 090424: Fermi GBM Observation
- GRB 090424: SDSS Galaxy at the Swift position
- GRB 090424: TNT optical observations
- GRB 090424: ROTSE-III Confimation of Optical Counterpart
- GRB 090424: Swift detection of a burst with an optical counterpart