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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').

8 results found.

  1. GRB 071101, Swift-BAT refined analysis
  2. GRB 071101: Swift-XRT Team refined analysis
  3. GRB071101: Optical and NIR upper limits by KANATA
  4. GRB 071101: TAROT Calern observatory optical observations
  5. GRB 071101: Swift XRT position
  6. GRB 071101: BOOTES-2 prompt optical observations
  7. GRB 071101: a nearby galaxy
  8. GRB 071101: Swift detection of a burst


Download all Circulars as a .tar.gz archive:
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