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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').

6 results found.

  1. GRB050814: Radio Observation
  2. GRB 050814: continued fading
  3. GRB 050814: XRT refined analysis
  4. GRB050814: Refined analysis of the Swift-BAT burst
  5. GRB 050814: Swift XRT Afterglow Localization
  6. GRB 050814: Swift detection of a burst

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Download all Circulars as a .tar.gz archive:
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