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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. GRB110414A: MITSuME Ishigakijima Optical upper limits
  2. GRB 110414A: GROND upper limits
  3. GRB110414A: MITSuME Okayama Optical upper limits
  4. GRB 110414A: Swift-BAT Refined Analysis
  5. GRB 110414A: Swift/UVOT Upper limits
  6. GRB 110414A: Swift-XRT refined Analysis
  7. GRB 110414A: Enhanced Swift-XRT position
  8. GRB 110414A : Faulkes Telescope North observations
  9. GRB 110414A: Swift detection of a burst

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