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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"

32717 results found.

  1. GRB 060505: X-ray afterglow - Correction -
  2. GRB 060505: X-ray afterglow
  3. Konus-Wind observation of GRB 060510A
  4. GRB060418: optical observations
  5. GRB 060428a, SMARTS optical/IR afterglow detection
  6. GRB060510B: Swift XRT refined analysis
  7. GRB 060510B: Swift/UVOT Upper Limits
  8. GRB 060510A: Refined analysis of the Swift-BAT burst
  9. GRB 060510B: Swift-BAT Refined Analysis
  10. GRB060510A: XRT refined analysis
  11. GRB060510 - SDSS Pre-Burst Observations
  12. GRB 060510b: Redshift
  13. GRB060510B : Faulkes North Telescope detection
  14. GRB 060510b: Gemini NIR observations
  15. GRB 060510B: Super-LOTIS Observations
  16. GRB 060510b: NIR observations
  17. GRB 060510B: Coordinate correction
  18. GRB 060510B: MDM Observations and candidate OT
  19. GRB 060510: Swift detection of a burst with optical transient
  20. GRB060507: optical afterglow detection
  21. GRB060502B: improvement in the XRT afterglow position
  22. GRB 060507: BART limit
  23. GRB 060507: Final Refined analysis of the Swift-BAT burst
  24. GRB 060507: Swift-BAT Refined Analysis
  25. GRB 060505: PROMPT Observations
  26. GRB 060507: Swift/UVOT Upper Limits
  27. GRB 060507: Swift XRT Team Refined Analysis
  28. GRB 060507: MDM Optical Upper Limit
  29. GRB060507: Swift XRT position
  30. GRB 060429: Suzaku WAM observation
  31. GRB060505: Swift/UVOT Observations
  32. GRB 060505: Swift XRT Team Refined Analysis
  33. GRB 060306: Further Analysis of SOAR and APO NIR Observations
  34. GRB 060505: Swift XRT afterglow canditate position
  35. GRB 060502b: Second epoch Gemini observations
  36. GRB 060428B: spectroscopy
  37. GRB 060502B: optical observations
  38. GRB 060502B: AROMA refined photometric calibration
  39. GRB 060502B MDM Follow-up Observation
  40. GRB 060502b: Gemini imaging and spectroscopy
  41. GRB060502A, optical observation
  42. GRB 060502B: Swift/UVOT upper limits
  43. GRB 060502A: Swift/UVOT source detection
  44. GRB 060429: Refined IPN error box and Konus-Wind spectrum
  45. GRB 060502B: MDM Optical Observation
  46. GRB 060502B: AROMA optical observations
  47. GRB 060502B: Refined analysis of the Swift-BAT short burst
  48. GRB060502B: Swift XRT Team refined analysis
  49. Short GRB 060502B: Tautenburg Observation
  50. GRB 060427B Milagro GeV/TeV Observations
  51. GRB 060502A: TTT Observations
  52. GRB060502B: correction to XRT position
  53. GRB 060501: P60 Observations and Candidate Retraction
  54. GRB 060502B: Xinglong optical observation
  55. GRB060502: Swift-XRT refined analysis
  56. GRB 060502: Swift-BAT refined analysis
  57. GRB060502: Gemini spectroscopy
  58. GRB 060502: APO Spectroscopic Observations
  59. GRB060501: Swift UVOT followup observations
  60. GRB060502: Super-LOTIS Observations
  61. GRB 060502: P60 Afterglow Confirmation
  62. GRB 060501: MDM Observations
  63. GRB060501: Super-LOTIS observations
  64. GRB060501: P60 imaging and afterglow candidate
  65. GRB 060501: Refined analysis of the Swift-BAT burst
  66. GRB 060501: ROTSE-III Optical Limits
  67. Konus-Wind observation of GRB 060427B
  68. GRB060428B - SDSS Pre-Burst Observations
  69. GRB060428B: optical observation
  70. GRB060428B: possible detection of an optical counterpart by Swift/UVOT.
  71. GRB 060428B: MDM Observations
  72. GRB 060428A: PROMPT Observations
  73. GRB060428B: Swift XRT Team refined analysis
  74. GRB 060428B: Refined analysis of the Swift-BAT burst
  75. GRB 060428B: Xinglong I-band limit
  76. GRB 060428B: KAIT observations
  77. GRB 051117A: Bright host galaxy not confirmed
  78. GRB060428A: Swift/UVOT observations.
  79. GRB060428B, optical observation
  80. GRB 060428A: Refined analysis of the Swift-BAT burst
  81. GRB 060428b : Kiso R-band limit
  82. GRB 060428b: Optical afterglow candidate
  83. GRB060428A: Swift XRT Team refined analysis
  84. GRB 060427: NIR observations
  85. GRB060427: Xinglong optical Observations
  86. GRB 060427: Swift/UVOT upper limits.
  87. GRB 060427: Refined analysis of the Swift-BAT burst
  88. GRB060427: Swift XRT Team refined analysis
  89. GRB060418: Swift XRT Team Further Refined Analysis
  90. GRB 060427, optical observation
  91. GRB060424: optical afterglow detection
  92. GRB060418: Further Analysis of MIKE Spectroscopy
  93. GRB 060424: Refined analysis of the Swift-BAT burst
  94. GRB 060421: TTT Observations
  95. OT 060420: Likely Not a New Cosmic Transient
  96. No OT 060420 in MASCOT images
  97. GRB060421: Swift/UVOT observations
  98. GRB 060421: Swift-BAT Refined Analysis
  99. GRB 060421: Swift-XRT refined analysis
  100. GRB 060418: prediction of t_break

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