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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"

36404 results found.

  1. GRB 060510A: Refined analysis of the Swift-BAT burst
  2. GRB 060510B: Swift-BAT Refined Analysis
  3. GRB060510A: XRT refined analysis
  4. GRB060510 - SDSS Pre-Burst Observations
  5. GRB 060510b: Redshift
  6. GRB060510B : Faulkes North Telescope detection
  7. GRB 060510B : Planned XMM-Newton observation
  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 060510B: Swift detection of a burst
  14. GRB 060510: Swift detection of a burst with optical transient
  15. GRB060507: optical afterglow detection
  16. GRB060502B: improvement in the XRT afterglow position
  17. GRB 060507: BART limit
  18. GRB 060507: Final Refined analysis of the Swift-BAT burst
  19. GRB 060507: Swift-BAT Refined Analysis
  20. GRB 060505: PROMPT Observations
  21. GRB 060507: Swift/UVOT Upper Limits
  22. GRB 060507: Swift XRT Team Refined Analysis
  23. GRB 060507: MDM Optical Upper Limit
  24. GRB060507: Swift XRT position
  25. GRB 060507: Swift detection of a burst
  26. GRB 060429: Suzaku WAM observation
  27. GRB 060505: Swift XRT Team Refined Analysis
  28. GRB060425: new MASTER survey method
  29. GRB 060306: Further Analysis of SOAR and APO NIR Observations
  30. GRB 060505: Swift XRT afterglow canditate position
  31. GRB 060502b: Second epoch Gemini observations
  32. GRB 060505: Swift-BAT detection of a weak burst
  33. GRB 060428B: spectroscopy
  34. GRB 060502B: optical observations
  35. GRB 060502B: AROMA refined photometric calibration
  36. GRB 060502B MDM Follow-up Observation
  37. GRB 060502b: Gemini imaging and spectroscopy
  38. GRB060502A, optical observation
  39. GRB 060502B: Swift/UVOT upper limits
  40. GRB 060502A: Swift/UVOT source detection
  41. GRB 060429: Refined IPN error box and Konus-Wind spectrum
  42. GRB 060502B: MDM Optical Observation
  43. GRB 060502B: AROMA optical observations
  44. GRB 060502B: Refined analysis of the Swift-BAT short burst
  45. Short GRB 060502B: Tautenburg Observation
  46. GRB 060427B Milagro GeV/TeV Observations
  47. GRB 060502A: TTT Observations
  48. GRB 060501: P60 Observations and Candidate Retraction
  49. GRB 060502B: Xinglong optical observation
  50. GRB 060502B: MASTER optical observations
  51. GRB 060502B: Swift detection of a short burst
  52. GRB 060502: Swift-BAT refined analysis
  53. GRB060502: Gemini spectroscopy
  54. GRB 060502: APO Spectroscopic Observations
  55. GRB 060502: P60 Afterglow Confirmation
  56. GRB 060502: Swift detection of a burst with an optical counterpart
  57. GRB 060501: MDM Observations
  58. GRB060501: Super-LOTIS observations
  59. GRB 060501: Refined analysis of the Swift-BAT burst
  60. GRB060501: Swift XRT position
  61. GRB 060501: ROTSE-III Optical Limits
  62. GRB 060501: Swift detection of a burst
  63. IPN triangulation of GRB060429 (short/hard)
  64. Konus-Wind observation of GRB 060427B
  65. GRB060428B - SDSS Pre-Burst Observations
  66. GRB060428B: optical observation
  67. GRB060428B: possible detection of an optical counterpart by Swift/UVOT.
  68. GRB 060428B: MDM Observations
  69. GRB 060428A: PROMPT Observations
  70. GRB 060427B: MASTER optical observations
  71. GRB 060427B: IPN localization of a short hard burst
  72. GRB 060428B: Refined analysis of the Swift-BAT burst
  73. GRB 060428B: Xinglong I-band limit
  74. GRB 060428B: KAIT observations
  75. GRB060425:MASTER optical limit
  76. GRB 051117A: Bright host galaxy not confirmed
  77. GRB 060428A: Refined analysis of the Swift-BAT burst
  78. GRB 060428b : Kiso R-band limit
  79. GRB060427:MASTER optical limit
  80. GRB 060428b: Optical afterglow candidate
  81. GRB 060428B: Swift detection of a burst
  82. GRB 060427: NIR observations
  83. GRB 060428: Swift detection of a burst
  84. GRB 060427: NOT observations
  85. GRB 060427: Swift/UVOT upper limits.
  86. GRB 060427: Refined analysis of the Swift-BAT burst
  87. GRB060418: Swift XRT Team Further Refined Analysis
  88. GRB060425:MASTER survey observations
  89. GRB 060427, optical observation
  90. GRB 060427: Swift detection of a burst
  91. GRB 060425: IPN localization and KW spectrum of a short, hard burst
  92. An interactive program for GRB pseudo-redshift computations
  93. GRB060424: optical afterglow detection
  94. GRB060418: Further Analysis of MIKE Spectroscopy
  95. GRB 060424: Refined analysis of the Swift-BAT burst
  96. GRB 060424: Swift detection of a burst
  97. GRB 060421: TTT 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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