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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 150110B: AMI 15 GHz detection of possible radio counterpart
  2. GRB 150110B: Khureltogot optical upper limit
  3. GRB 150110B: Swift-BAT refined analysis
  4. GRB 150110B: Swift-XRT refined Analysis
  5. GRB 150110B: Swift/UVOT Upper Limits
  6. GRB 150110B: Fermi GBM Detection
  7. GRB 150110B: Enhanced Swift-XRT position
  8. GRB 150110B: Swift detection of a burst


Download all Circulars as a .tar.gz archive:
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