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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"

29099 results found.

  1. GRB 060729: ROTSE-III Detection of Optical Counterpart
  2. GRB 060729: Swift detection of a burst with an UVOT optical counterpart
  3. GRB 060728: Swift/UVOT Upper Limits
  4. GRB 060728: Refined analysis of the Swift-BAT burst
  5. Swift/XRT preliminary analysis
  6. GRB 060728: Swift detection of a burst
  7. GRB 060714: Swift/UVOT Observations
  8. GRB060719: prompt NIR observations with REM
  9. GRB 060719: Swift/UVOT Upper Limits
  10. GRB 060719: VLT/ISAAC observations
  11. GRB 060719: Refined analysis of the Swift-BAT burst
  12. GRB 060719: XRT refined analysis
  13. GRB 060719: further analysis of VLT observations
  14. GRB 060719: optical limit by Pi-of-the-Sky
  15. GRB060719: FRAM early follow-up limit
  16. GRB060719: REM NIR Observations
  17. GRB 060719: Swift detection of a burst
  18. GRB 060714: Refined analysis of the Swift-BAT burst
  19. GRB060717: Swift/UVOT upper limits
  20. GRB 060717: Swift XRT refined position
  21. GRB 060717: Swift-BAT refined analysis
  22. GRB 060714: REM infrared observations
  23. GRB 060717: Swift detection of a burst
  24. GRB 060714: Swift XRT refined analysis
  25. GRB060708: MARGE low resolution spectrum observations
  26. Swift-BAT trigger 219136 is not a GRB
  27. Swift trigger 219136 is probably not a GRB
  28. GRB 060714: Swift detection of a burst with an UVOT optical afterglow
  29. GRB 060605: SkyNet Optical Limits
  30. GRB 060712: XRT refined analysis
  31. GRB 060712: Swift/UVOT Upper Limits
  32. GRB 060712: XRT refined position
  33. GRB 060712: Refined analysis of the Swift-BAT burst
  34. GRB 060712: Swift detection of a burst
  35. GRB 060708: Swift-XRT refined analysis
  36. GCN 060708: Swift-UVOT Observations
  37. GRB 060708: Refined analysis of the Swift-BAT burst
  38. GCN 060707: Swift-UVOT observations
  39. GRB 060707: Swift-XRT refined analysis
  40. GRB 060708: Swift detection of a burst with an UVOT countpart
  41. GRB 060707: Refined analysis of the Swift-BAT burst
  42. GRB 060707: Swift detection of a burst
  43. GRB 060614: Detection of a Possible, Late-Time Rebrightening
  44. Swift-BAT trigger 215279 is not a GRB
  45. Trigger 215279: Swift detection of a possible burst (GRB 060619)
  46. Konus-Wind observation of GRB 060614
  47. The Unusually Long-Lived Afterglow of GRB 060614
  48. GRB060614: SSO 1m observations
  49. GRB 060614: Swift-BAT refined analysis
  50. GRB 060614: Swift/UVOT Observations
  51. GRB060614: Swift-XRT refined analysis
  52. GRB 060614: Swift detection of a burst with a bright optical and X-ray counterpart
  53. GRB 060602A: Swift/XRT analysis
  54. BAT Trigger #214277 is SGR 1900+14
  55. GRB 060610: KAIT observations
  56. GRB 060607: RTT150 optical observations
  57. GRB 060607B: Swift-BAT Refined Analysis
  58. GRB060602A: Swift/UVOT upper limits
  59. GRB 060607B: Swift detection of a burst
  60. GCN 060607: Swift-UVOT obswervations.
  61. GRB 060607: Swift-BAT Refined Analysis
  62. GRB 060607: optical limit by "Pi of the Sky"
  63. GRB 060607: Swift-XRT Team refined analysis
  64. GRB 060607: IR observations
  65. VLT/UVES observations of GRB 060607
  66. GRB 060607: PROMPT Observations
  67. GRB 060605: RTT150 optical observations
  68. GRB 060607: Swift detection of a burst with bright optical counterpart
  69. GRB 060605 BAT refined analysis
  70. GRB060605: Swift/UVOT detections
  71. GRB 060605: Swift-XRT Team refined analysis
  72. GRB 060605: RTT150 optical observations
  73. GRB 060605: Swift detection of a burst with optical counterpart
  74. GRB 060605: ROTSE-III Detection of Optical Counterpart
  75. GRB060604: Swift/UVOT detections
  76. GRB 060604: Swift-XRT Team refined analysis
  77. GRB 060604: BAT refined analysis
  78. GRB 060604A: ROTSE-III Optical Limits
  79. GRB 060604: Swift detection of a burst with possible optical counterpart
  80. GRB 060602B: XMM-Newton Survey Source
  81. GRB 060602B: Swift-XRT Refined Analysis
  82. GRB 060602B: Swift-BAT Refined Analysis
  83. GRB 060602B: Swift/UVOT observations
  84. GRB 060602A: Swift-BAT Refined Analysis
  85. GRB 060602B: RTT150 optical observations
  86. GRB 060602B: Swift detection of a burst
  87. GRB060602B: Watcher observations - no OT candidate
  88. GRB060602B: BOOTES-IR candidate afterglow
  89. GRB060602 - SDSS Pre-Burst Observations
  90. GRB 060602: Swift detection of a burst
  91. GRB 060526: Break in X-ray light curve
  92. GRB 051227 : WIDGET simultaneous optical observations
  93. GRB 051028 : WIDGET pre-trigger limit
  94. GRB060502b: optical observations
  95. GRB 060526: REM observations
  96. GRB 060526: Refined analysis of the Swift-BAT burst
  97. GRB 060526: RTT150 optical observations
  98. GRB060526: Further Swift-UVOT Observations
  99. GRB 060526: ROTSE-III Observations of Optical Counterpart
  100. GRB 060526: Watcher Observations

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