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').
9 results found.
- GRB 130609A: Swift/UVOT Upper Limits
- GRB 130609A: Radio Observations (5.8, 22 and 85 GHz)
- GRB 130609A: Fermi GBM observation
- GRB 130609A: Swift-XRT refined Analysis
- GRB 130609A: Enhanced Swift-XRT position
- GRB 130609A, Swift-BAT refined analysis
- GRB 130609A: RATIR Optical and NIR Observations
- GRB 130609A: P60 nondetection
- GRB 130609A: Swift detection of a burst