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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').

18 results found.

  1. GRB 121128A: optical observations in Mondy observatory
  2. GRB 121128A: optical upper limit in Maidanak observatory
  3. GRB 121128A: optical observations
  4. GRB 121128A: Optical Observations
  5. GRB 121128A: optical observation in Mondy observatory
  6. GRB 121128A: MITSuME Akeno Optical upper limits
  7. GRB 121128A: optical observation in Mondy observatory
  8. GRB 121128A: WSRT radio observation
  9. GRB 121128A: Swift/UVOT Detection
  10. GRB 121128A: Swift-XRT refined Analysis
  11. GRB 121128A: Enhanced Swift-XRT position
  12. GRB 121128A: RAPTOR Detection During Gamma-Ray Emitting Interval
  13. GRB 121128A: Fermi GBM observation
  14. GRB 121128A, Swift-BAT refined analysis
  15. Konus-Wind observation of GRB 121128A
  16. GRB 121128A - Gemini North redshift
  17. GRB 121128A: FTN optical afterglow confirmation
  18. GRB 121128A: Swift detection of a burst with an optical counterpart


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