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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').

15 results found.

  1. GRB 190123A: IKI-GRB-FuN optical upper limit
  2. GRB 190123A: NEXT-0.6m optical limit
  3. GRB 190123A: AROMA-N Optical Observation
  4. GRB 190123A: Swift/UVOT Upper Limits
  5. GRB 190123A: COATLI Optical Observations
  6. GRB 190123A: Swift-BAT refined analysis
  7. GRB190123A: MITSuME Akeno optical upper limits
  8. GRB 190123A: GMG observational limit
  9. GRB 190123A: Swift-XRT refined Analysis
  10. GRB 190123A: GOTO optical limit
  11. GRB 190123A: Fermi GBM observation
  12. GRB 190123A: BOOTES-4/MET optical limit
  13. GRB 190123A: Enhanced Swift-XRT position
  14. GRB 190123A: MASTER Global Robotic Net optical observation
  15. GRB 190123A: Swift detection of a burst

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