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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"

37216 results found.

  1. GRB 060502B: AROMA optical observations
  2. GRB 060502B: Refined analysis of the Swift-BAT short burst
  3. GRB060502B: Swift XRT Team refined analysis
  4. Short GRB 060502B: Tautenburg Observation
  5. GRB 060427B Milagro GeV/TeV Observations
  6. GRB 060502A: TTT Observations
  7. GRB 060501: P60 Observations and Candidate Retraction
  8. GRB 060502B: Xinglong optical observation
  9. GRB 060502B: MASTER optical observations
  10. GRB 060502B: Swift detection of a short burst
  11. GRB060502: Swift-XRT refined analysis
  12. GRB 060502: Swift-BAT refined analysis
  13. GRB060502: Gemini spectroscopy
  14. GRB 060502: APO Spectroscopic Observations
  15. GRB 060502: P60 Afterglow Confirmation
  16. GRB 060502: Swift detection of a burst with an optical counterpart
  17. GRB 060501: MDM Observations
  18. GRB060501: Super-LOTIS observations
  19. GRB060501: P60 imaging and afterglow candidate
  20. GRB 060501: Refined analysis of the Swift-BAT burst
  21. GRB060501: Swift XRT position
  22. GRB 060501: ROTSE-III Optical Limits
  23. GRB 060501: Swift detection of a burst
  24. IPN triangulation of GRB060429 (short/hard)
  25. Konus-Wind observation of GRB 060427B
  26. GRB060428B - SDSS Pre-Burst Observations
  27. GRB060428B: optical observation
  28. GRB060428B: possible detection of an optical counterpart by Swift/UVOT.
  29. GRB 060428B: MDM Observations
  30. GRB 060428A: PROMPT Observations
  31. GRB 060427B: MASTER optical observations
  32. GRB060428B: Swift XRT Team refined analysis
  33. GRB 060427B: IPN localization of a short hard burst
  34. GRB 060428B: Refined analysis of the Swift-BAT burst
  35. GRB 060428B: Xinglong I-band limit
  36. GRB 060428B: KAIT observations
  37. GRB060425:MASTER optical limit
  38. GRB 051117A: Bright host galaxy not confirmed
  39. GRB 060428A: Refined analysis of the Swift-BAT burst
  40. GRB 060428b : Kiso R-band limit
  41. GRB060427:MASTER optical limit
  42. GRB 060428b: Optical afterglow candidate
  43. GRB060428A: Swift XRT Team refined analysis
  44. GRB 060428B: Swift detection of a burst
  45. GRB 060427: NIR observations
  46. GRB 060428: Swift detection of a burst
  47. GRB 060427: NOT observations
  48. GRB 060427: Swift/UVOT upper limits.
  49. GRB 060427: Refined analysis of the Swift-BAT burst
  50. GRB060427: Swift XRT Team refined analysis
  51. GRB060418: Swift XRT Team Further Refined Analysis
  52. GRB060425:MASTER survey observations
  53. GRB 060427, optical observation
  54. GRB 060427: Swift detection of a burst
  55. GRB 060425: IPN localization and KW spectrum of a short, hard burst
  56. An interactive program for GRB pseudo-redshift computations
  57. GRB060424: optical afterglow detection
  58. GRB060418: Further Analysis of MIKE Spectroscopy
  59. GRB 060424: Refined analysis of the Swift-BAT burst
  60. GRB 060424: Swift detection of a burst
  61. GRB 060421: TTT Observations
  62. OT 060420: CONCAM detection of a candidate new magnitude 5 optical
  63. GRB 060421: Swift-BAT Refined Analysis
  64. GRB 060421: Swift-XRT refined analysis
  65. GRB 060418: prediction of t_break
  66. GRB060418: optical observations
  67. Konus-Wind observation of GRB 060418
  68. GRB(?)060421:MASTER optical limit
  69. GRB(?)060421 : XRT position
  70. GRB(?) 060421: Swift detection of a burst
  71. Erratum of GCN 4983 for GRB 060418 IR follow-up
  72. GRB 060418 : IR afterglow observations
  73. GRB 060418 : Lulin Optical follow-up
  74. GRB 060418: JHKs PAIRITEL Observations of Afterglow
  75. GRB 060418: Radio Observations
  76. GRB060418, BVRcIc field calibration
  77. GRB060418: Optical Observations
  78. GRB 060418: FRAM early afterglow observation
  79. GRB 060418: Refined Analysis of the Swift-BAT burst
  80. GRB060418: Swift XRT Team Refined Analysis
  81. GRB 060418, SMARTS continuing afterglow observations
  82. GRB 060418: PROMPT Detections
  83. GRB 060418, SMARTS optical/IR afterglow observations
  84. GRB060418: Magellan/MIKE Spectroscopic Redshift
  85. GRB060418 : LT optical afterglow observation
  86. GRB 060418: REM candidate afterglow
  87. GRB 060418: Swift detection of a burst with bright x-ray and optical afterglow
  88. GRB 060413: REM NIR Observations
  89. GRB 060413: Refined analysis of the Swift-BAT burst
  90. GRB 060413: Watcher UBVR observations
  91. GRB 060413: XRT refined analysis
  92. GRB 060413: No Optical Afterglow in Swift/UVOT TDRSS Data
  93. GRB 060413: Swift detection of a burst
  94. GRB060403: optical observations
  95. GRB 060403 Optical observations
  96. GRB 060403: MITSuME optical observation
  97. GRB060403: XRT refined analysis
  98. GRB 060403: Swift/UVOT upper limits
  99. SGR 1900+14: BAT observations
  100. GRB 060403: Refined analysis of the Swift-BAT burst

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