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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"

21039 results found.

  1. GRB 080430 - SDSS Pre-Burst Observations
  2. GRB 080430: TAROT Calern observatory optical observations
  3. GRB080426: Observations from CAHA
  4. GRB080426: Swift/UVOT upper limits
  5. Possible GRB 080315: XRT non-detection of afterglow
  6. GRB 080320 : Faulkes Telescope North Observations
  7. GRB 080319A : Liverpool and Faulkes Telescopes Observations
  8. GRB080319A: MAGIC telescope GeV observation
  9. GRB 080420A: ROTSE-III Optical Limits on a possible short burst
  10. GRB080310, BVRcIc field calibration
  11. GRB 080413B: Rapid PROMPT Observations
  12. Swift XRT and UVOT observations of GRB080414
  13. GRB 080413B: Faulkes Telescope South optical afterglow observations
  14. GRB 080413A: Liverpool Telescope and Faulkes Telescope South optical observations
  15. GRB 080413A: MOA-II optical afterglow observations
  16. GRB 080319B: Continued Gemini-N monitoring
  17. GRB 080414: RTT150 optical observations
  18. GRB 080414 Watcher observations
  19. VLA radio observations of GRB 080413B
  20. GRB 080413A: Gemini-South Spectroscopy
  21. GRB 080413B: Gemini-South Spectroscopy
  22. VLA radio observations of GRB 080413A
  23. GRB080413B
  24. GRB 080413a, SMARTS optical/IR afterglow observations
  25. GRB080413A: Swift/UVOT observations
  26. GRB 080413A: VLT/UVES redshift
  27. GRB080413B: REM NIR & Optical Observation
  28. GRB 080413B: GROND detection of afterglow in all bands
  29. GRB 080413: TAROT Calern observatory optical observations
  30. GRB 080413: ROTSE-III Detection of Optical Counterpart
  31. GRB 080411: Swift/UVOT refined analysis
  32. GRB 080411: Swift-XRT Refined Analysis
  33. GRB 080411: VLT redshift
  34. GRB 080411: GROND detection of optical afterglow candidate
  35. GRB080330: MAGIC telescope GeV observation
  36. GRB 080408: GROND detection of optical/NIR afterglow candidate
  37. GRB 080330 optical observations
  38. Swift/UVOT observations of GRB080409
  39. UVOT/Swift Observations of GRB080408
  40. GRB 080409: REM optical/NIR observations
  41. GRB 080319A: Early RAPTOR optical limits
  42. GRB 080319B: HST observations
  43. GRB 080330: RAPTOR detection of prompt optical flash
  44. GRB 080319B: Potential Jet Break Observed by Swift-XRT and UVOT
  45. GRB 080325: optical upper limit
  46. GRB 080330: Prompt PROMPT Observations
  47. GRB080330: optical observations
  48. GRB080330: optical observations
  49. GRB 080330: REM optical observations
  50. GRB 080330, SMARTS optical/IR afterglow observations
  51. GRB 080330 Swift-UVOT refined analysis
  52. GRB080330: TNT optical observations
  53. GRB 080330: Redshift Confirmation from Hobby-Eberly Telescope Spectroscopy
  54. GRB 080330: GROND Observations
  55. GRB 080330: TAROT Calern observatory optical observations
  56. GRB 080330A: PAIRITEL Infrared Detections
  57. GRB080330 - SDSS Pre-Burst Observations
  58. GRB 080330: Liverpool Telescope Optical observations
  59. GRB 080330A: ROTSE-III Detection of Optical Counterpart
  60. GRB 080330: TAROT Calern observatory optical detection
  61. GRB 080319B: Continued Gemini-South followup and possible host galaxy
  62. Swift/UVOT observations of GRB080328
  63. GRB080319B, BVRcIc field calibration
  64. GRB080328: Faulkes Telescope North observations
  65. GRB 080325: GROND Observations
  66. GRB080319B: optical observations
  67. GRB 080325: Swift/UVOT Upper Limits
  68. GRB 080319C: Gemini-North spectroscopic redshift
  69. GRB 080325: Early observations from OSN
  70. GRB 080325: NIR afterglow candidate
  71. GRB 080319D: GROND Detection of the Optical Counterpart
  72. GRB 080319B: Spitzer Mid-infrared Observations
  73. GRB 080319B: Second & Third Epoch WSRT Radio Observations
  74. Radio Detection of GRB 080319B
  75. GRB 080319D: GROND Observations
  76. GRB 080319C: UVOT Observations
  77. GRB 080319B: UVOT Observations
  78. GRB 080319A: UVOT Observations
  79. GRB 080319B - CARMA mm Observations
  80. GRB 080320: Early Super-LOTIS Observations
  81. GRB 080320: optical limit
  82. GRB 080320: Gemini-N optical afterglow
  83. GRB 080319B: Gemini-South photometry
  84. GRB 080319B: Allen Telescope Array Observations
  85. GRB 080319B optical observations
  86. GRB 080319B: WSRT Radio Observations
  87. GRB 080320: SDSS source and Gemini-N observations
  88. GRB 080319C: Early RAPTOR Observations
  89. GRB 080319C: KAIT OA observations
  90. GRB 080320 - SDSS Pre-Burst Observations
  91. GRB 080319B : Lulin observation of temporal break at 0.2 days
  92. GRB 080319B: ROTSE-III Observations of Optical Counterpart
  93. GRB 080319B: optical observations
  94. GRB 080319C - SDSS Pre-Burst Observations
  95. GRB 080319A SDSS Pre-Burst Observations
  96. GRB080319B - SDSS Pre-Burst Observations
  97. GRB 080319B: RAPTOR observations of a naked eye burst
  98. GRB 080319A: Swift-XRT Team Refined Analysis
  99. GRB 080319D: Swift/UVOT Refined Analysis of the Fading Optical Afterglow Candidate
  100. GRB 080319B: Hobby-Eberly Telescope Spectroscopy

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