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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').

17 results found.

  1. GRB 091127: Skynet/PROMPT Observations of Fading
  2. GRB 091018: Skynet/PROMPT Observations of Possible Host Galaxy
  3. GRB 091018, SMARTS optical/IR afterglow observations
  4. GRB 091018: Skynet/PROMPT Continued Observations of Fading
  5. GRB 091018: Swift XRT refined analysis
  6. GRB 091018: miniTAO/ANIR Observations
  7. GRB 091018: Skynet/PROMPT Observations of Fading
  8. Konus-RF observation of GRB 091018
  9. GRB 091018 : Faulkes Telescope South Observations
  10. GRB 091018: BOOTES-3 observations
  11. GRB 091018: VLT/X-shooter spectra
  12. GRB091018: Swift/UVOT observations
  13. GRB 091018: Swift-BAT refined analysis
  14. GRB 091018: GROND observations
  15. GRB 091018: Enhanced Swift-XRT position
  16. GRB 091018: ROTSE-III Detection of Optical Counterpart
  17. GRB 091018: Swift detection of a burst with optical afterglow

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