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GCN Circulars

GCN Circulars are rapid bulletins submitted by and distributed to the community. 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').
Advanced Search

To narrow the search results, use advanced search syntax. This allows for specifying which circular field to search (submitter, subject, and/or body). For additional information, refer to the advanced search documentation.

Advanced Search Examples (click to copy):

subject:"Swift"
body:"GRB"
submitter:"Judith Racusin"

26560 results found.

  1. GRB980519 Secondary Standards
  2. SGR1900+14
  3. SGR1900+14
  4. BATSE on-board GRB trigger change
  5. GRB 980519 Optical Observations
  6. GRB 980519
  7. GRB980519 optical observations
  8. GRB 980519 Optical Observations
  9. GRB980519 BATSE Observations
  10. GRB980519 Optical Observations
  11. GRB 980519 Optical Observations
  12. GRB980519 optical observations
  13. GRB980515, BeppoSAX IAUC to be submitted
  14. BATSE on-board GRB trigger change
  15. GRB980519, BeppoSAX-WFC updated position
  16. BeppoSAX GRB ALERT: updated position of grb980515
  17. BSAX Observations of GRB980425 field
  18. IPN web site of GRBs
  19. GRB980425 BATSE observations
  20. SAX J0840.7+2248 Optical Observations
  21. GRB980425: optical obs.
  22. GRB980425: Radio Observations
  23. report on BSAX observations of GRB980425
  24. GRB 980329 ROSAT observation
  25. GRB980326 X-ray Observations
  26. GRB980326, optical observations
  27. GRB980326, optical observations
  28. GRB980329
  29. GRB980329 Keck K-band observations
  30. GRB980329 sub-millimeter observations
  31. GRB980329 IPN annulus
  32. GRB980329 optical observations
  33. GRB980329 near-IR observations
  34. GRB980326 optical observations
  35. GRB980329 optical observations
  36. GRB980329 VLA observations
  37. GRB980329 optical observations
  38. GRB980326 optical observations
  39. GRB980326 optical observations
  40. GRB980326 optical observations
  41. GRB970508 SAO RAS optical observations
  42. Optical Observations of GRB 970508
  43. Near-IR follow-up on GRB 971227
  44. GRB971214: Keck R & I-band Observations
  45. Optical Observations of the GRB 971227 field
  46. Optical Observations on GRB 971227
  47. GRB971227: Plaskett R-band observations
  48. GRB 971227: Optical clarifications
  49. GRB971227: Further CAHA R-band images
  50. GRB971227: LOTIS observations
  51. GRB971214: Optical Observations and Calibrations
  52. GRB 971214: EUVE Observations
  53. GRB 971214: KPNO Optical Observations
  54. GRB 971214: Optical Observations
  55. Radio Observations of GRB 971214 at the VLA
  56. GRB 971214: USNOFS Observations Summary
  57. GRB 971024: KPNO Optical Observations Summary
  58. GRB 971024: KPNO Optical Observations
  59. Possible new SGR from US Naval Observatory
  60. GRB 970828: Palomar Observations

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