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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').

10 results found.

  1. GRB 120305A: D50 optical limits
  2. GRB 120305A: Swift spectral lag analysis
  3. GRB 120305A: Swift/UVOT Upper Limits
  4. GRB 120305A: EVLA deep limit on a radio counterpart
  5. GRB 120305A: Swift-XRT refined Analysis
  6. GRB 120305A: Enhanced Swift-XRT position
  7. GRB 120305A: Swift-BAT refined analysis
  8. GRB 120305A - Liverpool Telescope Observations
  9. GRB 120305A: MASTER-NET early optical observations
  10. GRB 120305A: Swift detection of a short burst


Download all Circulars as a .tar.gz archive:
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