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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"

32770 results found.

  1. GRB 060526: RTT150 optical observations, afterglow flattening
  2. GRB 060526: Optical Flare
  3. GRB 060526: MDM-2.4m Observations
  4. GRB 060526: Refined analysis of the Swift-BAT burst
  5. GRB 060526: RTT150 optical observations
  6. GRB060526: Further Swift-UVOT Observations
  7. GRB 060526: Magellan Redshift
  8. GRB 060526: Swift/XRT Team refined analysis
  9. GRB 060526: TNG optical observations
  10. GRB 060526: ROTSE-III Observations of Optical Counterpart
  11. GRB 060526: Watcher Observations
  12. GRB060526 - SDSS Pre-burst Observations
  13. GRB 060526: Continued emission for the Swift burst
  14. GRB060505: VLT observations of the optical afterglow
  15. GRB 060413 : WIDGET simultaneous optical observations
  16. GRB 060522: Swift/UVOT Observations: Correction
  17. GRB 060522: Swift/UVOT Observations of the Optical Afterglow
  18. XMM-Newton observation of GRB060510b
  19. GRB060512: Late-Time P200 Observations
  20. GRB060522: z = 5.11 Keck-LRIS Redshift
  21. GRB 060522: Swift/XRT Team refined analysis
  22. GRB 060522: Swift-BAT Refined Analysis
  23. GRB 060522: REM NIR observations
  24. GRB 060522: TNG optical observations
  25. GRB 060512: reanalysis of optical spectra
  26. GRB 060515: NIR observation
  27. GRB 060210: Jet Break in the XRT light curve
  28. GRB 060516: Refined analysis of the Swift-BAT burst
  29. GRB 060512: TNG optical spectroscopy
  30. GRB060515: P200 NIR Observations
  31. GRB 060505 BAT refined analysis
  32. GRB 060515 BAT refined analysis
  33. GRB 060515: Swift/XRT Team refined analysis
  34. GRB 060515: Swift/UVOT Upper Limits
  35. GRB 060515: Swift/XRT position
  36. GRB 060515: Super-LOTIS Observations
  37. GRB060515: Swift/UVOT initial observation
  38. GRB 060515: ROTSE-III Optical Limits
  39. VLT optical spectroscopy of GRB 060512
  40. Swift/UVOT observations of GRB060512.
  41. GRB 060512: Subaru NIR observation
  42. GRB060512: Swift XRT Team refined analysis
  43. GRB 060512: 1.54m Kuiper Observations
  44. GRB 060512: Detection of NIR afterglow
  45. GRB 060512: P60 Observations
  46. GRB 060512: Swift-BAT Refined Analysis
  47. GRB 060505 - OT candidate + galaxy spectrum
  48. GRB 060512: optical decay
  49. GRB 060512: REM NIR observations
  50. GRB060512 - SDSS Pre-Burst Observations
  51. GRB060512 Name Correction: LT Afterglow detection
  52. GRB060512: Liverpool Telescope Afterglow detection
  53. GRB 060510A: Swift/UVOT Detection of an Optical Afterglow
  54. GRB 060505: X-ray afterglow - Correction -
  55. GRB 060505: X-ray afterglow
  56. Konus-Wind observation of GRB 060510A
  57. GRB060418: optical observations
  58. GRB 060428a, SMARTS optical/IR afterglow detection
  59. GRB060510B: Swift XRT refined analysis
  60. GRB 060510B: Swift/UVOT Upper Limits
  61. GRB 060510A: Refined analysis of the Swift-BAT burst
  62. GRB 060510B: Swift-BAT Refined Analysis
  63. GRB060510A: XRT refined analysis
  64. GRB060510 - SDSS Pre-Burst Observations
  65. GRB 060510b: Redshift
  66. GRB060510B : Faulkes North Telescope detection
  67. GRB 060510b: Gemini NIR observations
  68. GRB 060510B: Super-LOTIS Observations
  69. GRB 060510b: NIR observations
  70. GRB 060510B: Coordinate correction
  71. GRB 060510B: MDM Observations and candidate OT
  72. GRB 060510: Swift detection of a burst with optical transient
  73. GRB060507: optical afterglow detection
  74. GRB060502B: improvement in the XRT afterglow position
  75. GRB 060507: BART limit
  76. GRB 060507: Final Refined analysis of the Swift-BAT burst
  77. GRB 060507: Swift-BAT Refined Analysis
  78. GRB 060505: PROMPT Observations
  79. GRB 060507: Swift/UVOT Upper Limits
  80. GRB 060507: Swift XRT Team Refined Analysis
  81. GRB 060507: MDM Optical Upper Limit
  82. GRB060507: Swift XRT position
  83. GRB 060429: Suzaku WAM observation
  84. GRB060505: Swift/UVOT Observations
  85. GRB 060505: Swift XRT Team Refined Analysis
  86. GRB 060306: Further Analysis of SOAR and APO NIR Observations
  87. GRB 060505: Swift XRT afterglow canditate position
  88. GRB 060502b: Second epoch Gemini observations
  89. GRB 060428B: spectroscopy
  90. GRB 060502B: optical observations
  91. GRB 060502B: AROMA refined photometric calibration
  92. GRB 060502B MDM Follow-up Observation
  93. GRB 060502b: Gemini imaging and spectroscopy
  94. GRB060502A, optical observation
  95. GRB 060502B: Swift/UVOT upper limits
  96. GRB 060502A: Swift/UVOT source detection
  97. GRB 060429: Refined IPN error box and Konus-Wind spectrum
  98. GRB 060502B: MDM Optical Observation
  99. GRB 060502B: AROMA optical observations
  100. GRB 060502B: Refined analysis of the Swift-BAT short burst

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