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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').

9 results found.

  1. GRB 130206A: GROND Observations
  2. GRB 130206A: Fermi LAT Observations
  3. GRB 130206A: Fermi GBM observation
  4. GRB 130206A: XRT and UVOT follow-up observations.
  5. GRB 130206A, Swift-BAT refined analysis
  6. GRB 130206A: Zadko observatory - Gingin optical observations
  7. Swift GRB 130206A - analysis of Swift/UVOT initial data.
  8. GRB 130206A: Swift-XRT observations
  9. GRB 130206A: Swift detection of a burst


Download all Circulars as a .tar.gz archive:
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