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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').
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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"

19666 results found.

  1. GRB 140304A: Continued RATIR Optical and NIR Observations
  2. GRB 140305A: Swift-BAT refined analysis
  3. Trigger 590503: Swift-BAT triggered on noise
  4. GRB 140304A: CARMA 3mm detection
  5. GRB 140305A: Swift detection of a burst
  6. GRB 140304A: RATIR g-band Dropout
  7. GRB 140304A: Swift-BAT refined analysis
  8. GRB 140304A: Swift-XRT refined Analysis
  9. GRB 140304A: Enhanced Swift-XRT position
  10. GRB 140304A: Fermi GBM detection
  11. GRB 140304A: 10.4m GTC redshift z = 5.39
  12. GRB 140304A: Swift/UVOT Upper Limits
  13. GRB 140304A: Afterglow decay from Nanshan observations
  14. GRB 140304A: Swift detection of a burst
  15. GRB 140304A: MASTER OT detecton
  16. GRB 140301A: Swift/UVOT Upper Limits
  17. GRB 140302A: Swift/UVOT Upper Limits
  18. GRB140302A: Fermi GBM detection
  19. GRB 140302A: Swift-XRT refined Analysis
  20. GRB 140302A: Swift-BAT refined analysis
  21. GRB 140302A: Enhanced Swift-XRT position
  22. GRB 140301A: Swift-BAT refined analysis
  23. GRB 140301A: Swift-XRT refined Analysis
  24. GRB 140301A: GROND Detection of the Optical/NIR Afterglow
  25. GRB 140302A: GROND afterglow candidate
  26. GRB 140302A: Prompt enhanced Swift-XRT position
  27. GRB 140302A: Swift detection of a burst
  28. GRB 140301A: Enhanced Swift-XRT position
  29. GRB 140301A: Skynet R-COP Observations
  30. GRB 140301A: Swift detection of a burst
  31. GRB 140226A/iPTF14yb: Swift/UVOT Observations
  32. GRB 140226A / iPTF14yb: Swift-XRT confirms a fading X-ray source
  33. IPN triangulation of GRB 140226A, a possible GRB counterpart to iPTF14yb
  34. iPTF14yb: Swift-XRT detection
  35. GRB 140219A: Retraction of X-ray afterglow
  36. GRB 140102A: TAOS early optical afterglow detection
  37. GRB 140219A: XRT afterglow candidate
  38. GRB 140221A: Results from Swift XRT tiled observations
  39. GRB 140219A: Xuyi and Nanshan upper limits
  40. GRB 140219A: results from Swift XRT and UVOT tiled observations
  41. GRB 140221A Tiled Swift observations
  42. GRB 140219A Tiled Swift observations
  43. Swift follow-up of an Integral weak transient
  44. GRB 140213A: Continued Skynet R-COP/PROMPT Observations of the Optical Afterglow
  45. GRB 140215A: RAPTOR Observations During Gamma-Ray Emitting Interval
  46. GRB 140213A: Continued Skynet R-COP/PROMPT Detections of a Rebrightening Optical Afterglow
  47. GRB 140215A: Continued Skynet PROMPT Observations of the Optical Afterglow
  48. GRB 140211A: Khureltogot optical upper limits
  49. GRB 140215A: Continued RATIR Optical and NIR Observations
  50. Konus-Wind observation of GRB 140213A
  51. Konus-Wind observation of GRB 140215A
  52. GRB 140215A: Swift/UVOT Detection
  53. GRB 140211A: Swift-XRT and UVOT observations
  54. GRB140215A: Continued Discovery Channel Telescope Observations
  55. GRB 140215A: Swift-BAT refined analysis
  56. GRB 140215A: ISON-NM optical observations
  57. GRB 140215A: Swift-XRT refined Analysis
  58. GRB 140215A: P60 observations
  59. GRB 140215A: Enhanced Swift-XRT position
  60. GRB 140215A: RATIR Optical and NIR Observations
  61. GRB140215A: Skynet PROMPT Optical Observations
  62. GRB 140215A: KAIT Optical Detection
  63. GRB140215A: Prompt Observations with Discovery Channel Telescope
  64. GRB 140215A: Swift detection of a burst with optical counterpart
  65. GRB 140213A: Swift-BAT refined analysis
  66. GRB140206A: Discovery Channel Telescope Optical Detection
  67. GRB 140213A: Swift/UVOT Observations
  68. GRB 140213A: Fermi GBM Detection
  69. GRB 140213A: Swift-XRT refined Analysis
  70. GRB 140213A: Enhanced Swift-XRT position
  71. GRB 140213A: GROND Detection of the Optical/NIR Afterglow
  72. GRB 140213A: Skynet R-COP Detection of Optical Afterglow
  73. GRB 140213A: Swift-XRT observations
  74. GRB 140213A: Swift/UVOT Detection
  75. GRB 140213A: Swift detection of a burst
  76. Trigger 586482: Swift detection of GROJ1744-28
  77. Correction to GCN 18521 "GRB140209A: Swift/UVOT observations"
  78. GRB140209A: Swift/UVOT observations.
  79. GRB 140211A: Swift-BAT refined analysis
  80. GRB 140209A: Swift-XRT observations
  81. Konus-Wind observation of GRB 140209A
  82. GRB 140211A: Swift detection of a burst
  83. GRB 140209A: Early RAPTOR Optical Detection
  84. GRB 140209A: Swift-BAT Spectral lag analysis
  85. GRB 140206A: Bassano Bresciano Observatory optical upper limit
  86. GRB 140209A, Swift-BAT refined analysis
  87. GRB 140209A: Fermi GBM observation
  88. GRB 140209A: optical observations
  89. GRB 140209A: P60 optical afterglow detection
  90. GRB 140209A: Swift detection of a burst
  91. GRB 140206A: Mondy optical observations
  92. GRB 140206A: Liverpool Telescope optical afterglow observations
  93. GRB 140206A, Swift-BAT refined analysis
  94. GRB 140206A: Swift-XRT refined Analysis
  95. GRB 140206A: T100 observations
  96. GRB 140206A: Fermi GBM detection
  97. GRB 140206A: Swift/UVOT Detection
  98. GRB 140206A: theoretical prediction of redshift and of supernova occurrence
  99. GRB 140206A: Enhanced Swift-XRT position
  100. GRB 140206A: ISON-Ussuriysk optical observations

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