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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"

36104 results found.

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

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