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').
11 results found.
- Correction to GCN Circular 23663: GRB 190109A: Swift UVOT Upper Limits
- GRB 190109A: Swift/UVOT Upper Limits
- GRB 190109A: Fermi GBM observation
- Correction to the GCN circ. 23654 / GRB 190109B: Mondy optical upper limit
- GRB 190109B: Mondy optical upper limit
- GRB 190109A: Swift-BAT refined analysis
- GRB190109A: MITSuME Akeno optical upper limits
- GRB 190109A: Swift-XRT refined Analysis
- GRB 190109A: Enhanced Swift-XRT position
- GRB 190109A: Prompt enhanced Swift-XRT position
- GRB 190109A: Swift detection of a burst