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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"

21090 results found.

  1. GRB 080330, SMARTS optical/IR afterglow observations
  2. GRB 080330 Swift-UVOT refined analysis
  3. GRB080330: TNT optical observations
  4. GRB 080330: Redshift Confirmation from Hobby-Eberly Telescope Spectroscopy
  5. GRB 080330: GROND Observations
  6. GRB 080330: TAROT Calern observatory optical observations
  7. GRB 080330A: PAIRITEL Infrared Detections
  8. GRB080330 - SDSS Pre-Burst Observations
  9. GRB 080330: Liverpool Telescope Optical observations
  10. GRB 080330A: ROTSE-III Detection of Optical Counterpart
  11. GRB 080330: TAROT Calern observatory optical detection
  12. GRB 080319B: Continued Gemini-South followup and possible host galaxy
  13. Swift/UVOT observations of GRB080328
  14. GRB080319B, BVRcIc field calibration
  15. GRB080328: Faulkes Telescope North observations
  16. GRB 080325: GROND Observations
  17. GRB080319B: optical observations
  18. GRB 080325: Swift/UVOT Upper Limits
  19. GRB 080319C: Gemini-North spectroscopic redshift
  20. GRB 080325: Early observations from OSN
  21. GRB 080325: NIR afterglow candidate
  22. GRB 080319D: GROND Detection of the Optical Counterpart
  23. GRB 080319B: Spitzer Mid-infrared Observations
  24. GRB 080319B: Second & Third Epoch WSRT Radio Observations
  25. Radio Detection of GRB 080319B
  26. GRB 080319D: GROND Observations
  27. GRB 080319C: UVOT Observations
  28. GRB 080319B: UVOT Observations
  29. GRB 080319A: UVOT Observations
  30. GRB 080319B - CARMA mm Observations
  31. GRB 080320: Early Super-LOTIS Observations
  32. GRB 080320: optical limit
  33. GRB 080320: Gemini-N optical afterglow
  34. GRB 080319B: Gemini-South photometry
  35. GRB 080319B: Allen Telescope Array Observations
  36. GRB 080319B optical observations
  37. GRB 080319B: WSRT Radio Observations
  38. GRB 080320: SDSS source and Gemini-N observations
  39. GRB 080319C: Early RAPTOR Observations
  40. GRB 080319C: KAIT OA observations
  41. GRB 080320 - SDSS Pre-Burst Observations
  42. GRB 080319B : Lulin observation of temporal break at 0.2 days
  43. GRB 080319B: ROTSE-III Observations of Optical Counterpart
  44. GRB 080319B: optical observations
  45. GRB 080319C - SDSS Pre-Burst Observations
  46. GRB 080319A SDSS Pre-Burst Observations
  47. GRB080319B - SDSS Pre-Burst Observations
  48. GRB 080319B: RAPTOR observations of a naked eye burst
  49. GRB 080319A: Swift-XRT Team Refined Analysis
  50. GRB 080319D: Swift/UVOT Refined Analysis of the Fading Optical Afterglow Candidate
  51. GRB 080319B: Hobby-Eberly Telescope Spectroscopy
  52. GRB 080319B: TORTORA synchronous observation
  53. GRB 080319B: REM early data
  54. VLT/UVES redshift of GRB 080319B
  55. GRB 080319C: Early Super-LOTIS Observations
  56. GRB 080319C: KAIT OA candidate
  57. GRB 080319A: REM observations
  58. GRB 080319B: Change in power law decay index
  59. GRB 080319B: Gemini-South Spectroscopy
  60. GRB 080319A: optical observations at the NOT
  61. GRB0 080319B : LOAO optical observation
  62. GRB 080319b: Early IR Imaging from PAIRITEL
  63. GRB080319B Liverpool Telescope optical afterglow candidate
  64. GRB 080319B: Super-LOTIS Detection of a Bright OT
  65. GRB 080319B: REM observations
  66. GRB080319A: P60 Optical Afterglow Observations
  67. GRB080315: Bok Optical Observations
  68. Swift/UVOT observations of GRB 080315
  69. GRB 080315: Optical observations
  70. GRB 080315: TAROT Calern observatory optical observations
  71. GRB080310 : Lulin Optical observations
  72. GRB080310 : Optical observations by LOAO and Lulin
  73. GRB 080310: ROTSE-III Observations of Optical Counterpart
  74. GRB080310, optical observations with the LBT
  75. GRB 080310: PAIRITEL detection and PAIRITEL+KAIT+UVOT SED
  76. GRB 080310: early RAPTOR multicolor observations
  77. GRB080210: optical observations
  78. GRB 080310 - SDSS Pre-Burst Observations
  79. GRB 080310: RRM optical photometry with the VLT
  80. GRB 080310: VLT/UVES spectroscopy
  81. GRB080310, optical observations with LBT
  82. GRB 080310: Magellan redshift revision
  83. GRB080310: Super-LOTIS suggestion of brightening
  84. GRB 080310, SMARTS optical/IR afterglow observations
  85. GRB 080310: REM observations
  86. GRB 080310: Magellan redshift
  87. GRB080307 BOAO optical afterglow observation - detection of a possible OT
  88. GRB 080307: Swift/UVOT Upper Limits
  89. GRB080307 - SDSS Pre-Burst Observations
  90. GRB 080307: TNT optical observation
  91. GRB080307: Optical upper limits
  92. GRB 080307: Gemini-N i-band observations - candidate afterglow
  93. GRB 080307, Preliminary Swift-BAT refined analysis
  94. GRB 080307: Optical observation with DMC/KANATA
  95. Swift UVOT observations of GRB080229B
  96. GRB 080303A: Faulkes Telescope South optical afterglow observations
  97. GRB 080303
  98. GRB 080229: I-band observations from OSN
  99. GRB 080229: VLT NIR observations
  100. GRB 080229: TNG NIR observations

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