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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. GRB 230628E: Swift/UVOT Detection
  2. GRB 230628E: Swift-BAT refined analysis
  3. GRB 230628E: ATCA rapid radio follow-up
  4. GRB 230628E - VLT spectroscopic observations
  5. GRB230628E: VLT optical identification of afterglow candidate
  6. GRB 230628E: Swift-XRT refined Analysis
  7. GRB 230628E: Enhanced Swift-XRT position (Correction to name in GCN 34115)
  8. GRB 230628E: LCOGT Optical Upper Limit
  9. GRB 230628E: Swift detection of a burst


Download all Circulars as a .tar.gz archive:
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