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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').

18 results found.

  1. GRB 160117B: RATIR continued observations
  2. GRB 160117B: TNG spectroscopy and redshift confirmation
  3. GRB 160117B: VLA Detection
  4. GRB 160117B: further RATIR observations
  5. GRB 160117B: RATIR Optical and NIR Observations
  6. GRB 160117B: further NOT optical observations of the afterglow
  7. GRB 160117B: Early iTelescope observation
  8. GRB 160117B: GROND optical/NIR afterglow observations
  9. GRB 160117B: VLT/X-shooter spectroscopy
  10. GRB 160117B: iTelescope T17 optical observations
  11. GRB 160117B: NOT optical afterglow observations
  12. GRB 160117B: Swift-XRT refined Analysis
  13. GRB 160117A: Swift-BAT refined analysis
  14. GRB 160117B: Swift/UVOT Detection
  15. GRB 160117B: Enhanced Swift-XRT position
  16. GRB 160117B: LCOGT-SSO optical observations
  17. GRB 160117B: MASTER-Amur OT observations
  18. GRB 160117B: Swift detection of a burst with optical counterpart

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