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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').

13 results found.

  1. GRB 100614A: 10.4-m GTC deep-optical limit
  2. GRB 100614A: CrAO optical limit
  3. GRB 100614A: Gemini/NIRI Observations
  4. GRB 100614A: Swift/UVOT Upper Limits
  5. GRB 100614A: NOT optical upper limits
  6. GRB 100614A: MASTER-Net optical alert observations
  7. GRB 100614A: Swift-BAT refined analysis
  8. GRB 100614A: Enhanced Swift-XRT position
  9. GRB 100614A: Swift-XRT refined analysis
  10. GRB 100614A: WHT I-band observations
  11. GRB 100614A: BOOTES-2/TELMA optical observations
  12. GRB 100614A: Liverpool Telescope Observations
  13. GRB 100614A: Swift detection of a burst

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