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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').

8 results found.

  1. GRB 180224A: Swift/UVOT Detection
  2. GRB 180224A: OASDG optical observations
  3. GRB 180224A: AbAO optical observations
  4. GRB 180224A: Swift-BAT refined analysis
  5. GRB 180224A: RATIR Optical Observations
  6. GRB 180224A: Swift-XRT refined Analysis
  7. GRB 180224A: Enhanced Swift-XRT position
  8. GRB 180224A: Swift detection of a burst with an optical counterpart

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