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').
14 results found.
- GRB 220430A: Nanshan/NEXT optical upper limit
- GRB 220430A: Nanshan/HMT optical upper limit
- GRB 220430A: GIT optical upper limits
- GRB 220430A: AstroSat CZTI detection
- GRB 220430A: Swift-BAT refined analysis
- GRB 220430A: CAHA 2.2m telescope optical limit
- GRB 220430A: Swift-XRT refined Analysis
- Swift GRB 220430A: Global MASTER-Net observations report
- GRB 220430A: GRANDMA observations
- GRB 220430A: Mondy and AbAO optical upper limits
- GRB 220430A: AGILE detection
- GRB 220430A: MeerLICHT optical upper limits
- GRB 220430A: Enhanced Swift-XRT position
- GRB 220430A: Swift detection of a burst or Swift J0630.4+0932