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').
12 results found.
- GRB 090531B: Fermi GBM detection
- GRB 090531b, SMARTS optical/IR observations
- GRB 090531B: GROND observation
- GRB 090531B: Swift/BAT spectral lag results
- Corrections to GRB 090531B Swift/UVOT Upper Limits
- GRB 090531B, RIMOTS optical upper limits
- GRB 090531B: Swift/UVOT Upper Limits
- GRB 090531B: Swift-BAT refined analysis
- Initial Swift/UVOT observations of GRB 090531B
- GRB 090531B: Swift-XRT candidate afterglow position
- GRB 090531B: ROTSE-III Optical Limits
- GRB 090531B: Swift detection of a burst