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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. GRB100526B: GROND Upper limits
  2. GRB 100526B: Swift-XRT confirmation of fading afterglow
  3. GRB 100526B: Swift/UVOT Upper Limits
  4. GRB 100526B: Swift-BAT refined analysis
  5. GRB 100526B: Swift XRT/UVOT observations
  6. GRB 100526B: Swift detection of a probable GRB

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Download all Circulars as a .tar.gz archive:
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