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').
12 results found.
- GRB 070917: Suzaku/WAM observation of the prompt emission
- GRB 070917: Confirmation of the X-ray afterglow
- GRB070917: Confirmation of optical afterglow
- GRB 070917: P60 Observations
- GRB 070917: pseudo-z= 2.40 from prompt emission spectrum
- Konus-Wind observation of GRB 070917
- GRB 070917: Swift-XRT observations
- GRB 070917: KAIT optical limits
- GRB 070917: MITSuME Akeno Ic upper limit
- GRB 070917: R band observations
- GRB 070917, Swift-BAT refined analysis
- GRB 070917: Swift detection of a bright burst