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.
- Radio observation of GRB 080520 with ATCA
- GRB 080520: VLT host detection
- GRB 080520, Swift-BAT refined analysis
- GRB080520: Swift/UVOT observations
- GRB 080520: VLT redshift
- GRB 080520, GROND observations
- GRB 080520: Enhanced Swift-XRT position
- GRB 080520: Swift XRT Refined Analysis
- GRB 080520: Swift detection of a burst with optical afterglow