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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.

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

19668 results found.

  1. GRB 080603B: optical observations in CrAO
  2. GRB 080710: TLS observations, steepening afterglow decay
  3. GRB 080702B: Swift XRT confirmation of the afterglow
  4. GRB 080710, Swift-BAT refined analysis
  5. GRB 080710: Swift-XRT refined analysis
  6. GRB080710: Swift/UVOT observations
  7. GRB 080710: Enhanced Swift-XRT position
  8. UVOT white band observations of GRB080710
  9. GRB 080710: KAIT OA candidate
  10. GRB 080710: Swift XRT position
  11. GRB 080710: Swift detection of a burst
  12. GRB 080707: possible break in the X-rays
  13. New Swift-XRT GRB products available online.
  14. GRB 080707: GROND Confirmation of the Optical Afterglow
  15. UVOT observations of GRB080707
  16. GRB 080707, Swift-BAT refined analysis
  17. GRB 080707: Swift XRT refined analysis
  18. GRB 080707: Enhanced Swift-XRT position
  19. GRB 080707: GROND Detection of the Optical Afterglow Candidate
  20. GRB 080707: Swift detection of a burst
  21. Refined analysis of Swift Trigger 316063, is IGR J08408-4503
  22. Trigger 316063: Swift detection of a transient
  23. GRB 080703: GROND Upper Limits
  24. GRB 080702B: GROND Upper Limits
  25. GRB 080703: Swift-XRT refined analysis
  26. GRB 080703: UVOT Follow-Up Observation
  27. GRB 080703: Enhanced Swift-XRT position
  28. GRB 080703, Swift-BAT refined analysis
  29. GRB 080702B Swift-BAT refined analysis
  30. GRB 080703: Swift detection of a burst with optical afterglow
  31. GRB 080703A: ROTSE-III Detection of Optical Counterpart
  32. Swift/UVOT observation of GRB080702A
  33. GRB 080702B: Swift XRT and UVOT observations
  34. GRB 080701A: Early RAPTOR optical limits
  35. Swift Trigger 315630: Swift/UVOT Upper Limits
  36. GRB 080702A, Swift-BAT refined analysis
  37. GRB 080702A: Swift-XRT Team refined analysis
  38. GRB 080702B : Burst detected in BAT during Swift slew
  39. GRB 080702A: Enhanced Swift-XRT position
  40. Swift Trigger 315630: TLS R-band observation
  41. Swift Trigger 315630: Probably not a GRB
  42. GRB 080702: Swift detection of a short burst
  43. GRB 080701: Swift-XRT refined analysis
  44. TLS I-Band Observation of GRB 080701A
  45. GRB 080701A: Swift/UVOT Upper Limits
  46. GRB 080701: Enhanced Swift-XRT position
  47. GRB 080701A, Swift-BAT refined analysis
  48. Trigger 315630: Swift detection of a possible burst
  49. GRB 080701: Swift-XRT Prompt Analysis
  50. GRB 080701: Swift detection of a burst
  51. GRB 080623: Suzaku WAM observation of the prompt emission
  52. GRB 080625: Swift/UVOT Follow-Up Observations
  53. GRB 080625:Swift-XRT detection of the afterglow
  54. GRB 080625: Swift/UVOT Detection of an Optical Afterglow
  55. GRB 080623: GROND upper limits
  56. GRB080623: Swift UVOT followup observations
  57. GRB 080623: Swift-XRT refined analysis
  58. GRB 080623, Swift-BAT refined analysis
  59. GRB 080623: Enhanced Swift-XRT position
  60. GRB 080623: TAROT La Silla observatory optical observations
  61. GRB 080623: Swift/UVOT Non-Detection of an Optical Afterglow
  62. GRB 080623: Swift XRT prompt analysis
  63. GRB 080623: Swift detection of a burst
  64. Swift trigger 314975 is not a GRB
  65. Swift-BAT trigger 314975 possible burst
  66. GRB080607: optical observation
  67. GRB 080603b: optical observation
  68. GRB 070809: Putative host galaxy and redshift
  69. Konus-Wind observation of GRB 080613B
  70. GRB 080613A: Swift-XRT detection of the afterglow
  71. GRB080613A: Swift/UVOT Upper Limits
  72. GRB 080613B: GROND Upper Limits
  73. GRB080613B: Swift/UVOT Upper Limits
  74. GRB 080613B, Swift-BAT refined analysis
  75. GRB 080613B: Swift-XRT refined analysis
  76. GRB 080613B: Swift detection of a burst
  77. GRB 080603b: optical observation
  78. Swift observations of BAT Slew Survey event (Trigger=010)
  79. GRB 080603A: final Swift-XRT observations.
  80. GRB 080607: AGILE-MCAL observation of the prompt emission
  81. GRB 080603B - TLS 2nd Epoch: Another Break
  82. GRB 080605: TLS 3rd Epoch - Source Confusion
  83. Konus-Wind observation of GRB 080607
  84. GRB080607: RTT150 optical observations
  85. GRB 080607: Swift-XRT refined analysis
  86. Swift/UVOT Observations of GRB080607
  87. GRB 080605: optical observations
  88. GRB 080607 KAIT observations
  89. Konus-Wind observation of GRB 080605
  90. GRB 080607: Enhanced Swift-XRT position
  91. GRB 080607, Swift-BAT refined analysis
  92. GRB 080605: GROND 2nd epoch observations
  93. GRB 080607: Swift detection of a burst with optical afterglow
  94. GRB 080607: ROTSE-III Detection of Optical Counterpart
  95. GRB 080605: Swift-UVOT refined analysis
  96. GRB 080604: VLA radio upper limit
  97. GRB 080605, Swift-BAT refined analysis
  98. GRB 080603B: VLA radio upper limit
  99. GRB 080605, Swift-BAT refined analysis
  100. GRB 080605: Swift-XRT refined analysis

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