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.
Search for Circulars by submitter, subject, or body text (e.g. 'Fermi GRB').
To navigate to a specific circular, enter the associated Circular ID (e.g. 'gcn123', 'Circular 123', or '123').
To navigate to a specific circular, enter the associated Circular ID (e.g. 'gcn123', 'Circular 123', or '123').
10 results found.
- GRB 210527A: Swift-BAT refined analysis
- GRB 210527A: Swift/UVOT Observations
- GRB 210527A: GIT optical upper limit
- GRB 210527A: MITSuME Akeno optical upper limits
- Swift GRB 210527A: Global MASTER-Net observations report
- GRB 210527A: Swift-XRT refined Analysis
- GRB 210527A: RATIR Optical and NIR Observations
- GRB 210527A: Enhanced Swift-XRT position
- GRB 210527A: Swift-XRT observations
- GRB 210527A: Swift detection of a burst