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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"

19317 results found.

  1. GRB 080723B: AGILE GRID and MCAL results
  2. GRB 080723A: Swift-XRT refined analysis
  3. GRB 080723B: Detection and Localization by SuperAGILE
  4. GRB 080721 : Lulin 2nd optical follow-ups
  5. GRB 080721: Swift-XRT refined analysis
  6. GRB 080721, Swift-BAT refined analysis
  7. GRB 080721 : Lulin Optical follow-ups
  8. GRB 080721: Swift detection of a burst with a bright optical counterpart.
  9. Trigger 317205: Swift detection of an outburst from XTE J1701-407
  10. Konus-Wind observation of GRB 080714
  11. GRB 080714: Swift-BAT refined analysis
  12. GRB 080714: Swift detection of a burst
  13. GRB 080702B: Swift XRT confirmation of the afterglow
  14. GRB 080710, Swift-BAT refined analysis
  15. GRB 0800707: optical observations
  16. GRB 080710: Swift-XRT refined analysis
  17. GRB080710: Swift/UVOT observations
  18. New Swift-XRT GRB products available online.
  19. GRB 080707, Swift-BAT refined analysis
  20. GRB 080707: Swift XRT refined analysis
  21. GRB 080707: Swift detection of a burst
  22. Refined analysis of Swift Trigger 316063, is IGR J08408-4503
  23. Trigger 316063: Swift detection of a transient
  24. GRB 080703: UVOT Follow-Up Observation
  25. GRB 080703, Swift-BAT refined analysis
  26. GRB 080702B Swift-BAT refined analysis
  27. GRB 080703: Swift detection of a burst with optical afterglow
  28. GRB 080703A: ROTSE-III Detection of Optical Counterpart
  29. GRB 080702B: Swift XRT and UVOT observations
  30. GRB 080625: Suzaku WAM observation of the prompt emission
  31. GRB 080702A, Swift-BAT refined analysis
  32. GRB 080702A: Swift-XRT Team refined analysis
  33. Swift Trigger 315630: Probably not a GRB
  34. TLS I-Band Observation of GRB 080701A
  35. GRB 080701A, Swift-BAT refined analysis
  36. GRB 080701: Swift detection of a burst
  37. GRB 080623: Suzaku WAM observation of the prompt emission
  38. GRB 080625:Swift-XRT detection of the afterglow
  39. GRB 080625: Swift/UVOT Detection of an Optical Afterglow
  40. GRB 080625: Gamma Ray Burst Localization by SuperAGILE
  41. GRB 080623: Swift-XRT refined analysis
  42. GRB 080623, Swift-BAT refined analysis
  43. GRB 080623: Swift detection of a burst
  44. Swift trigger 314975 is not a GRB
  45. GRB 070809: Putative host galaxy and redshift
  46. VLA upper limit on INTEGRAL burst GRB 080613A
  47. GRB 080613A: Swift-XRT detection of the afterglow
  48. GRB 080613B, Swift-BAT refined analysis
  49. GRB 080613B: Swift-XRT refined analysis
  50. GRB 080613B: Swift detection of a burst
  51. GRB 080613 : a long GRB detected with INTEGRAL
  52. GRB 080603A: final Swift-XRT observations.
  53. GRB 080607: AGILE-MCAL observation of the prompt emission
  54. GRB 080605: TLS 3rd Epoch - Source Confusion
  55. GRB 080603A: optical observations
  56. GRB 080607: Swift-XRT refined analysis
  57. Swift/UVOT Observations of GRB080607
  58. GRB 080607, Swift-BAT refined analysis
  59. GRB 080607: Swift detection of a burst with optical afterglow
  60. GRB 080607: ROTSE-III Detection of Optical Counterpart
  61. GRB 080605: TLS RRM Analysis, Plateau/Rebrightening, Red OT
  62. GRB 080605: Swift-UVOT refined analysis
  63. GRB 080605, Swift-BAT refined analysis
  64. GRB 080605, Swift-BAT refined analysis
  65. GRB 080605: Swift-XRT refined analysis
  66. GRB 080605: Swift detection of a burst with an optical afterglow
  67. GRB 080604, Swift-BAT refined analysis
  68. GRB 080604: Swift-XRT refined analysis
  69. Konus-Wind observation of GRB 080603B
  70. GRB 080603B: Swift-XRT refined analysis
  71. GRB 080603A: Swift-XRT detection of the afterglow
  72. GRB 080430: optical observations
  73. GRB 080603B: Swift/UVOT detection of the afterglow
  74. GRB 080603B, Swift-BAT refined analysis
  75. GRB080603B: RTT150 optical observations, break in light curves
  76. GRB 080604: Swift detection of a burst with an optical afterglow
  77. GRB 080603B: Swift detection of a burst with optical afterglow
  78. GRB 080603B: ROTSE-III Detection of Optical Counterpart
  79. GRB 080603: A long GRB detected by INTEGRAL
  80. SGR 1627-41: Chandra/RXTE/Swift Observations Scheduled
  81. GRB 080602, Swift-BAT refined analysis
  82. GRB 080602: Swift-XRT refined analysis
  83. Konus-Wind observation of GRB 080602
  84. Konus-Wind observation of reactivation of SGR 1627-41
  85. GRB 080524: Swift-BAT detection of a burst in ground analysis
  86. GRB 080523: Swift-XRT refined analysis
  87. GRB 080523, Swift-BAT refined analysis
  88. GRB 080515: Swift-XRT position and analysis
  89. GRB 080520, Swift-BAT refined analysis
  90. GRB 080514B: Suzaku WAM observation of the prompt emission
  91. Konus-Wind observation of GRB 080514B
  92. GRB 080514B: second epoch Swift XRT data confirms the X-ray afterglow
  93. GRB 080517, Swift-BAT refined analysis
  94. GRB 080517: Swift-XRT refined analysis
  95. GRB 080516, GROND 2nd epoch observations
  96. GRB 080516, GROND observations
  97. GRB 080516: Swift-XRT Team refined analysis
  98. GRB 080516, Swift-BAT refined analysis
  99. GRB 080514B : redshift estimation
  100. Swift-BAT refined analysis for Trigger 311603: Galactic source

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