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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').

20 results found.

  1. GRB 091024: optical observations
  2. GRB 091024: Fermi LAT upper limits
  3. GRB091024 optical observations
  4. GRB 091024: Keck/LRIS Spectroscopy
  5. GRB 091024: YNAO-GMG observations
  6. GRB 091024: Burst was outside the Swift-BAT FOV after T0(BAT)+460sec
  7. Konus-Wind and Konus-RF observations of GRB 091024
  8. GRB091024 Swift/UVOT Upper Limits
  9. GRB 091024: TLS Upper Limit
  10. GRB 091024: KAIT optical afterglow observations
  11. GRB 091024: Super-LOTIS early observations
  12. GRB 091024: Swift-BAT refined analysis
  13. GRB 091024: Fermi GBM Observations
  14. GRB 091024: Swift-XRT team refined analysis
  15. GRB 091024: Xinglong TNT optical observation
  16. GRB 091024 : Faulkes Telescope North - Afterglow Confirmation
  17. GRB 091024 Gemini-North redshift
  18. GRB 091024: GRAS004 optical observations
  19. GRB 091024: Faulkes Telescope North Afterglow Candidate
  20. GRB 091024: Swift detection of a burst

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