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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').

9 results found.

  1. Konus-Wind observation of GRB 180324A
  2. GRB 180324A, Swift-BAT refined analysis
  3. GRB 180324A: Swift/UVOT Upper Limits
  4. GRB 180324A: Swift-XRT refined Analysis
  5. GRB 180324A: Enhanced Swift-XRT position
  6. GRB 180324A: RATIR Optical Observations and Possible Afterglow Detection
  7. GRB 180324A: KAIT Optical Upper Limit
  8. GRB 180324A: Prompt enhanced Swift-XRT position
  9. GRB 180324A: Swift detection of a burst


Download all Circulars as a .tar.gz archive:
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