Skip to main content
New Announcement Feature, Code of Conduct, Circular Revisions. See news and announcements

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').

10 results found.

  1. GRB 160714A: 15 GHz upper limits from AMI
  2. GRB 160714A: Swift/UVOT Upper Limits
  3. GRB 160714A: TAROT Calern observatory optical observations
  4. GRB 160714A: Swift-XRT observations
  5. GRB 160714A: Fermi GBM observation
  6. GRB 160714A: Swift-BAT refined analysis,
  7. GRB 160714A: MASTER early optical observations
  8. GRB 160714A: Optical observations from OSN
  9. GRB 160714A: Swift-XRT observations
  10. GRB 160714A: Swift detection of a short burst

Advanced

Download all Circulars as a .tar.gz archive:
Looking for U.S. government information and services? Visit USA.gov