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').
6 results found.
- GRB 090814B: Confirmation of the X-ray afterglow
- GRB 090814B: I-band observations from 1.23m CAHA telescope
- GRB 090814B: Swift/UVOT Upper Limits
- GRB 090814B: Liverpool Telescope Observations
- GRB 090814B: Swift-XRT detection of a possible afterglow.
- GRB 090814B: a long GRB localized by INTEGRAL