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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').

23 results found.

  1. GRB 080430: optical observations
  2. GRB 080430: optical observations
  3. GRB 080430
  4. GRB 080430: TLS imaging one day after the GRB
  5. GRB 080430
  6. GRB 080430
  7. GRB 080430
  8. GRB 080430: Optical observations
  9. GRB 080430: Shallow decay
  10. GRB080430: RTT150 Optical Observations
  11. GRB080430: Swift/UVOT observations
  12. VLA radio upper limit on GRB 080430
  13. GRB 080430 - multicolor observations of the afterglow
  14. GRB 080430 optical observations
  15. GRB 080430, Swift-BAT refined analysis
  16. GRB 080430: Hobby-Eberly Telescope Absorption Redshift
  17. GRB 080430: Swift-XRT refined analysis
  18. GRB 080430: Enhanced Swift-XRT position
  19. GRB 080430: Spectroscopy from CAHA
  20. GRB 080430 - SDSS Pre-Burst Observations
  21. GRB 080430: Bootes observation
  22. GRB 080430: Swift detection of a burst with optical afterglow
  23. GRB 080430: TAROT Calern observatory optical observations

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