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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').

24546 results found.

  1. GRB 980519
  2. GRB980519 optical observations
  3. GRB 980519 Optical Observations
  4. GRB980519 BATSE Observations
  5. GRB980519 Optical Observations
  6. GRB980519 Optical Observations
  7. GRB 980519 Optical Observations
  8. GRB980515, BeppoSAX IAUC to be submitted
  9. BSAX Observations of GRB980425 field
  10. IPN web site of GRBs
  11. GRB980425 BATSE observations
  12. SAX J0840.7+2248 Optical Observations
  13. GRB980425: optical obs.
  14. GRB980425: Radio Observations
  15. report on BSAX observations of GRB980425
  16. GRB 980329 ROSAT observation
  17. GRB980326 X-ray Observations
  18. GRB980326, optical observations
  19. GRB980326, optical observations
  20. GRB980329, Fading IR counterpart to radio source
  21. GRB980329 Keck K-band observations
  22. GRB980329 sub-millimeter observations
  23. GRB980329 optical observations
  24. GRB980329 near-IR observations
  25. GRB980329 near-IR observations
  26. GRB980326 optical observations
  27. GRB980329 optical observations
  28. GRB980329 VLA observations
  29. GRB980329 optical observations
  30. GRB980329 optical observations
  31. GRB980326 optical observations
  32. GRB980326 optical observations
  33. Optical Observations of GRB 970508
  34. Near-IR follow-up on GRB 971227
  35. Optical Observations of the GRB 971227 field
  36. Optical Observations on GRB 971227
  37. GRB971227: Plaskett R-band observations
  38. GRB 971227: Optical clarifications
  39. GRB971227: Further CAHA R-band images
  40. GRB971227: LOTIS observations
  41. GRB971214: Optical Observations and Calibrations
  42. GRB 971214: Optical Observations
  43. Radio Observations of GRB 971214 at the VLA
  44. GRB 971024: Refined analysis by USNOFS Observations
  45. GRB 971024: KPNO Optical Observations
  46. GRB 970828: Palomar Observations

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