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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').

7 results found.

  1. GRB 200107B: Swift/UVOT Observations
  2. GRB 200107B: Swift-XRT refined Analysis
  3. Swift GRB 200107B: Global MASTER-Net observations report
  4. GRB 200107B: Fermi GBM observation
  5. GRB 200107B: Swift-BAT refined analysis
  6. GRB 200107B: Swift detection of a burst
  7. GRB 200107B: Fermi GBM Final Real-time Localization

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Download all Circulars as a .tar.gz archive:
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