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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').

10 results found.

  1. GRB 100526A: Gemini/NIRI afterglow confirmation and host galaxy
  2. GRB 100526A: optical upper limit
  3. GRB 100526A: Swift/UVOT Upper Limits
  4. GRB 100526A: Gemini/NIRI infrared afterglow candidate
  5. GRB 100526A: NOT optical upper limit
  6. GRB 100526A: Swift XRT refined analysis
  7. GRB 100526A: Swift-BAT refined analysis
  8. GRB 100526A: Enhanced Swift-XRT position
  9. GRB 100526A: MASTER-Net optical alert observations
  10. GRB 100526A: Swift detection of a burst

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