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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').

13 results found.

  1. GRB 160501A: SMARTS optical/IR observations
  2. GRB 160501A: Swift-BAT refined analysis
  3. GRB 160501A: GROND Upper limits
  4. GRB 160501A: MITSuME Okayama upper limits
  5. GRB 160501A: UKIRT near-IR upper limits
  6. GRB 160501A: Swift/UVOT Upper Limits
  7. GRB 160501A: Swift-XRT refined Analysis
  8. GRB 160501A: RATIR Optical and NIR Observations
  9. GRB 160501A: Enhanced Swift-XRT position
  10. GRB 160501A: TAROT Calern observatory optical observations
  11. GRB 160501A MASTER-NET early observations
  12. GRB 160501A: NOT optical and NIR observations
  13. GRB 160501A: Swift detection of a burst

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