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').
15 results found.
- GRB 200228B: continued optical observations
- GRB 200228B: Mondy, TSHAO, AbAO and CrAO optical observations, afterglow candidate
- GRB 200228B: LCO Optical Upper Limit
- GRB 200228B: Swift-BAT refined analysis
- GRB 200228B: RATIR Optical Observations
- GRB 200228B: Liverpool Telescope imaging
- GRB 200228B: Swift-XRT refined Analysis
- Swift GRB 200228B: Global MASTER-Net observations report
- GRB 200228B: Swift/UVOT Upper Limits
- GRB 200228B: RATIR Optical Observations
- GRB 200228B: Fermi GBM observation
- GRB 200228B: KAIT Optical Upper Limit
- GRB 200228B: Enhanced Swift-XRT position
- GRB 200228B: Swift detection of a burst
- GRB 200228B: Fermi GBM Final Real-time Localization