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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 081203A: optical observations
  2. GRB081203A: Optical observations at Ishigaki
  3. GRB081203A: Radio upper limit at 15 GHz
  4. GRB081203A: MITSuME optical observation
  5. GRB 081203A: Optical observations of Xinglong TNT telescope
  6. GRB 081203A: Skynet/GORT Detections
  7. VLA Radio upper limit on GRB 081203A
  8. Konus-Wind observation of GRB 081203A
  9. GRB081203A: Swift-XRT refined analysis
  10. GRB 081203A: optical observations
  11. Swift UVOT observations of GRB 081203A
  12. GRB 081203B: Naming correction for burst detected in Swift-BAT slew data
  13. GRB081203A: Swift/UVOT grism redshift
  14. GRB 081203A: Burst detection from Swift-BAT slew data
  15. GRB 081203A: Swift-BAT refined analysis

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