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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').

14 results found.

  1. GRB 060323 : WIDGET simultaneous optical observations
  2. GRB 060323: Early optical observation at Xinglong
  3. GRB060323: NOT optical observations
  4. GRB 060323: Swift/UVOT Observations
  5. GRB 060323: optical afterglow confirmed
  6. GRB060323: NOT observations
  7. GRB 060323: Optical Observations
  8. GRB 060323: Tautenburg OT candidate retraction
  9. GRB 060323: Refined analysis of the Swift-BAT burst
  10. GRB 060323: optical observations at TNG
  11. GRB 060323: Swift XRT refined analysis
  12. GRB 060323: BVRI observations at Tautenburg, aftreglow candidate
  13. GRB 060323: Swift/XRT position
  14. GRB 060323: Swift detection of a burst with a possible optical afterglow

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