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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"

32711 results found.

  1. GRB 060510B: Swift/UVOT Upper Limits
  2. GRB 060510A: Refined analysis of the Swift-BAT burst
  3. GRB 060510B: Swift-BAT Refined Analysis
  4. GRB060510A: XRT refined analysis
  5. GRB060510 - SDSS Pre-Burst Observations
  6. GRB 060510b: Redshift
  7. GRB060510B : Faulkes North Telescope detection
  8. GRB 060510b: Gemini NIR observations
  9. GRB 060510B: Super-LOTIS Observations
  10. GRB 060510b: NIR observations
  11. GRB 060510B: Coordinate correction
  12. GRB 060510B: MDM Observations and candidate OT
  13. GRB 060510: Swift detection of a burst with optical transient
  14. GRB060507: optical afterglow detection
  15. GRB060502B: improvement in the XRT afterglow position
  16. GRB 060507: BART limit
  17. GRB 060507: Final Refined analysis of the Swift-BAT burst
  18. GRB 060507: Swift-BAT Refined Analysis
  19. GRB 060505: PROMPT Observations
  20. GRB 060507: Swift/UVOT Upper Limits
  21. GRB 060507: Swift XRT Team Refined Analysis
  22. GRB 060507: MDM Optical Upper Limit
  23. GRB060507: Swift XRT position
  24. GRB 060429: Suzaku WAM observation
  25. GRB060505: Swift/UVOT Observations
  26. GRB 060505: Swift XRT Team Refined Analysis
  27. GRB 060306: Further Analysis of SOAR and APO NIR Observations
  28. GRB 060505: Swift XRT afterglow canditate position
  29. GRB 060502b: Second epoch Gemini observations
  30. GRB 060428B: spectroscopy
  31. GRB 060502B: optical observations
  32. GRB 060502B: AROMA refined photometric calibration
  33. GRB 060502B MDM Follow-up Observation
  34. GRB 060502b: Gemini imaging and spectroscopy
  35. GRB060502A, optical observation
  36. GRB 060502B: Swift/UVOT upper limits
  37. GRB 060502A: Swift/UVOT source detection
  38. GRB 060429: Refined IPN error box and Konus-Wind spectrum
  39. GRB 060502B: MDM Optical Observation
  40. GRB 060502B: AROMA optical observations
  41. GRB 060502B: Refined analysis of the Swift-BAT short burst
  42. GRB060502B: Swift XRT Team refined analysis
  43. Short GRB 060502B: Tautenburg Observation
  44. GRB 060427B Milagro GeV/TeV Observations
  45. GRB 060502A: TTT Observations
  46. GRB060502B: correction to XRT position
  47. GRB 060501: P60 Observations and Candidate Retraction
  48. GRB 060502B: Xinglong optical observation
  49. GRB060502: Swift-XRT refined analysis
  50. GRB 060502: Swift-BAT refined analysis
  51. GRB060502: Gemini spectroscopy
  52. GRB 060502: APO Spectroscopic Observations
  53. GRB060501: Swift UVOT followup observations
  54. GRB060502: Super-LOTIS Observations
  55. GRB 060502: P60 Afterglow Confirmation
  56. GRB 060501: MDM Observations
  57. GRB060501: Super-LOTIS observations
  58. GRB060501: P60 imaging and afterglow candidate
  59. GRB 060501: Refined analysis of the Swift-BAT burst
  60. GRB 060501: ROTSE-III Optical Limits
  61. Konus-Wind observation of GRB 060427B
  62. GRB060428B - SDSS Pre-Burst Observations
  63. GRB060428B: optical observation
  64. GRB060428B: possible detection of an optical counterpart by Swift/UVOT.
  65. GRB 060428B: MDM Observations
  66. GRB 060428A: PROMPT Observations
  67. GRB060428B: Swift XRT Team refined analysis
  68. GRB 060428B: Refined analysis of the Swift-BAT burst
  69. GRB 060428B: Xinglong I-band limit
  70. GRB 060428B: KAIT observations
  71. GRB 051117A: Bright host galaxy not confirmed
  72. GRB060428A: Swift/UVOT observations.
  73. GRB060428B, optical observation
  74. GRB 060428A: Refined analysis of the Swift-BAT burst
  75. GRB 060428b : Kiso R-band limit
  76. GRB 060428b: Optical afterglow candidate
  77. GRB060428A: Swift XRT Team refined analysis
  78. GRB 060427: NIR observations
  79. GRB060427: Xinglong optical Observations
  80. GRB 060427: Swift/UVOT upper limits.
  81. GRB 060427: Refined analysis of the Swift-BAT burst
  82. GRB060427: Swift XRT Team refined analysis
  83. GRB060418: Swift XRT Team Further Refined Analysis
  84. GRB 060427, optical observation
  85. GRB060424: optical afterglow detection
  86. GRB060418: Further Analysis of MIKE Spectroscopy
  87. GRB 060424: Refined analysis of the Swift-BAT burst
  88. GRB 060421: TTT Observations
  89. OT 060420: Likely Not a New Cosmic Transient
  90. No OT 060420 in MASCOT images
  91. GRB060421: Swift/UVOT observations
  92. GRB 060421: Swift-BAT Refined Analysis
  93. GRB 060421: Swift-XRT refined analysis
  94. GRB 060418: prediction of t_break
  95. GRB060418: optical observations
  96. Konus-Wind observation of GRB 060418
  97. Possible GRB060421: BART limits
  98. Erratum of GCN 4983 for GRB 060418 IR follow-up
  99. GRB 060418 : IR afterglow observations
  100. GRB 060418 : Lulin Optical follow-up

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