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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"

37228 results found.

  1. GRB050716: Faulkes North Telescope observation
  2. Swift/BAT detection of GRB 050716
  3. GRB 050715: Swift-BAT detection
  4. Swift UVOT Observations of GRB 050714B
  5. Konus-Wind observation of GRB 050713A
  6. GRB 050714B: refined XRT analysis
  7. GRB 050713b: RTT150 optical observations
  8. GRB 050714B: candidate afterglow does not fade
  9. GRB050714B: Refined analysis of the Swift-BAT burst
  10. GRB 050714B: optical afterglow
  11. Swift detection of a long transient (GRB 050714B?)
  12. GRB 050709: optical afterglow candidate
  13. GRB 050714, R-band candidate
  14. GRB 050714: Swift XRT afterglow position
  15. GRB 050714, optical observations
  16. GRB 050714A: ROTSE-III Optical Limits
  17. GRB 050714 - A long GRB detected with INTEGRAL
  18. GRB 050713A: XRT refined analysis
  19. GRB 050709: Spectroscopy
  20. GRB 050713A: RAPTOR detection of early optical emission
  21. GRB050713B :Swift/UVOT observations
  22. GRB050713b: XRT refined analysis
  23. GRB050712: TNG R-band observations
  24. GRB 050713B: Swift-BAT Refined Analysis
  25. Swift-BAT Trigger 145729 is not a GRB
  26. GRB 050713A: Swift/UVOT observation
  27. GRB 050713A : Swift-BAT Refined Analysis
  28. GRB050712: Swift UVOT Observation of Afterglow Emission
  29. GRB 050713A : Lulin R-band observation
  30. GRB 050713A XMM-Newton observation
  31. GRB 050713b : Lulin R-band observations
  32. GRB050713B: Faulkes North Telescope observation
  33. RBO RI observations of GRB 050713A
  34. GRB 050713B
  35. GRB050709 : Chandra source optical counterpart
  36. GRB050713: Liverpool Telescope prompt observations
  37. GRB 050712, optical observations
  38. GRB 050713 : Planned XMM-Newton observation
  39. GRB050709: Candidate X-ray Afterglow from Chandra
  40. GRB 050713, R-band observations at NOT
  41. GRB 050713: ARC NIR Detections and Identification of Fading
  42. GRB050713: possible I-band afterglow
  43. GRB 050713: Swift detection of Bright Burst
  44. GRB 050713A: ROTSE-III Optical Limits
  45. GRB050712: XRT refined analysis
  46. GRB 050709: Swift UVOT and XRT observations
  47. GRB 050712: Swift-BAT Refined Analysis
  48. GRB 050712: Swift XRT afterglow position
  49. GRB 050712: Swift detection of a weak burst
  50. GRB 050709: LCO40 Observations
  51. GRB050709: A Possible Short-Hard GRB Localized by HETE
  52. PROMPT Rc Observations of GRB 050709
  53. GRB 050525a: PROMPT VRcIc Detections
  54. GRB 050525a: ARC 3.5-meter Optical and NIR Observations
  55. GRB 050525a: ARC 3.5-Meter SPIcam Field Calibration
  56. GRB 050626 optical observations
  57. GRB 050626: Swift XRT observations
  58. GRB 050701
  59. GRB 050701, optical observations
  60. GRB 050408: ARC 3.5-meter NIR Observations
  61. GRB 050701: Refined XRT analysis
  62. Swift UVOT observations of GRB 050701
  63. GRB 050701: Swift XRT afterglow position
  64. Swift trigger 143708 is really GRB 050701
  65. GRB 050607, radio observations
  66. GRB 050626 - Correction to GCN 3552
  67. GRB 050626 - a long GRB detected with INTEGRAL
  68. GRB 050525A: Swift Late-Time Decay Rate
  69. H3804: A Possible New XRB Detected by HETE
  70. H3800 and H3801 on 2005 June 11: two bursts from SGR1806-20 localized by HETE
  71. XRF 050509c: Optical monitoring
  72. IBAS Alert #2512 is NOT a GRB
  73. GRB 050416(a): Host Galaxy Redshift Determination
  74. GRB 050607: MDM Observation
  75. GRB 050607 optical decay
  76. GRB 050607: RTT150 optical observations
  77. GRB 050607 : Lulin R-band observation
  78. GRB 050607: PROMPT VRcIc Observations
  79. GRB 050607: RAPTOR-S Early Optical Limits
  80. GRB050607: KAIT optical limits
  81. GRB 050525a, Mid-Infrared Observations
  82. GRB 050607: Optical decay and spectral slope
  83. GRB 050607: MDM Observations
  84. GRB050607,optical observation
  85. GRB 050607 - XRT refined data analysis
  86. Optical Afterglow of GRB 050607
  87. GRB050607 optical limit by "Pi of the Sky"
  88. GRB050607: Swift Detection of a long GRB
  89. GRB050607: P60 Observations
  90. GRB 050603: prediction of t_break
  91. Limits on a SN in the field of GRB 050509b
  92. GRB 050603: Redshift
  93. GRB 050603 - XRT data analysis of the first day
  94. Konus-Wind observation of GRB 050603
  95. GRB 050603: Analysis of UVOT data
  96. GRB050603: Fading Afterglow observed by Swift UVOT
  97. GRB 050603: Swift XRT Position
  98. GRB050603: Radio Detection
  99. GRB 050603: Swift-BAT refined analysis of a long three-spiked burst
  100. GRB 050603: Afterglow Identification from LCO

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