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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').

11 results found.

  1. GRB 041218: TAROT optical observations
  2. GRB 041218: optical observations
  3. GRB 041218: Optical observations
  4. GRB 041218 Optical Observations
  5. GRB 041218 : Radio Observations
  6. GRB 041218: R-band optical observations
  7. GRB 041218: Optical Observation
  8. GRB041218: optical observations
  9. GRB 041218; optical candidate
  10. GRB 041218: Optical observations
  11. GRB 041218 - A long GRB detected by integral

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