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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 060124: Keck optical spectrum
  2. GRB 050908: DEIMOS spectrum and further analysis
  3. RBO GRB 050908 observations
  4. WIRO observations in I of GRB 050908
  5. GRB050908: VLT R-band decay index.
  6. GRB 050908: Swift-BAT refined analysis
  7. GRB 050908: Optical observations
  8. Gemini Spectroscopy of GRB 050908
  9. GRB 050908: spectroscopic redshift
  10. GRB 050908: Prompt PROMPT Observations
  11. GRB 050908 : Swift XRT position
  12. GRB 050908: KAIT observations
  13. GRB 050908: P60 Confirmation of Optical Afterglow
  14. GRB 050908: Optical Observations
  15. GRB 050908: Swift detection of a burst

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