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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"

15376 results found.

  1. GRB 080605: GROND detection of the optical afterglow candidate
  2. GRB 080603B: TLS Afterglow Observation
  3. GRB 080603A: TLS Afterglow Observation
  4. GRB080604: HET redshift retraction
  5. GRB 080604: Gemini-North spectroscopy
  6. GRB 080604, Swift-BAT refined analysis
  7. GRB 080603B : Liverpool Telescope Observations
  8. Konus-Wind observation of GRB 080603B
  9. GRB 080603B: Swift-XRT refined analysis
  10. GRB 080603B: Swift/UVOT detection of the afterglow
  11. GRB080603B: RTT150 optical observations, break in light curves
  12. GRB 080604: Early Super-LOTIS Observations
  13. GRB 080603B: BOOTES2/TELMA optical observations
  14. GRB 080603: A long GRB detected by INTEGRAL
  15. GRB 080602: Swift-XRT refined analysis
  16. Konus-Wind observation of GRB 080602
  17. GRB 080602: NOT R-band upper limit
  18. GRB 080523: afterglow confirmation and redshift constraints
  19. Reactivation of SGR 1627-41
  20. GRB 080523, Swift-BAT refined analysis
  21. GRB080521(?): detection of possible burst from BAT slew data and XRT ToO
  22. GRB 80516: Swift/UVOT Observations
  23. GRB 080514B: UVOT Observations
  24. GRB080520: Swift/UVOT observations
  25. GRB 080520, GROND observations
  26. GRB 080514B: Suzaku WAM observation of the prompt emission
  27. Konus-Wind observation of GRB 080514B
  28. GRB 080514B: second epoch Swift XRT data confirms the X-ray afterglow
  29. GRB 080517, Swift-BAT refined analysis
  30. GRB 080516, GROND further analysis
  31. GRB 080517: Swift detection of a burst
  32. GRB 080516, GROND 2nd epoch observations
  33. GRB 080514B : redshift estimation
  34. Konus-Wind observation of GRB 080513
  35. IPN triangulation of bright GRB 080513
  36. GRB 080514B, GROND observations
  37. GRB 080514B: Finding chart
  38. GRB 080514B: SuperAGILE/IPN GRB Localization
  39. Konus-Wind observation of GRB 080507
  40. GRB 080507: Suzaku WAM observation of the prompt emission
  41. GRB 080507: Swift XRT analysis confirms the X-ray afterglow
  42. GRB 080507: Keck photometry
  43. GRB 080507: E Pur Si Muove!
  44. GRB 080503: Chandra Observation of X-ray Rebrightening or Flattening
  45. GRB 080507: GRB localization by SuperAGILE
  46. GRB 080506: TLS 2nd Epoch - possible light curve break
  47. GRB080506: Swift/UVOT observations
  48. GRB 080506, Swift-BAT refined analysis
  49. GRB080503, RIMOTS optical upper limit
  50. GRB 080506: Observations from NOT
  51. GRB 080506: TLS afterglow detection in VRIZ
  52. GRB 080503: Observations from NOT
  53. GRB 080430: TLS imaging one day after the GRB
  54. GRB 080503: No further optical rebrightening
  55. GRB 080503: Optical afterglow candidate and LRIS spectroscopy of the short burst
  56. GRB 080430: Optical observations
  57. GRB080430: Swift/UVOT observations
  58. GRB 080430 optical observations
  59. GRB 080430 - SDSS Pre-Burst Observations
  60. GRB 080430: Swift detection of a burst with optical afterglow
  61. GRB080426: Observations from CAHA
  62. GRB 080426: Swift-XRT refined analysis
  63. GRB 080320 : Faulkes Telescope North Observations
  64. GRB 080319A : Liverpool and Faulkes Telescopes Observations
  65. GRB080310, BVRcIc field calibration
  66. GRB 080413A: Suzaku/WAM and Swift/BAT joint spectral analysis
  67. GRB 080319B: Jet Break, Energetics, Supernova
  68. GRB 080413A: Liverpool Telescope and Faulkes Telescope South optical observations
  69. GRB 080413A: Suzaku WAM observation of the prompt emission
  70. GRB 080413B: Suzaku WAM observation of the prompt emission
  71. GRB 080414: A long GRB detected by INTEGRAL
  72. GRB 080413A: Gemini-South Spectroscopy
  73. GRB 080413B: Gemini-South Spectroscopy
  74. GRB080413B
  75. GRB 080413B: Swift XRT refined analysis
  76. GRB080413A: Swift/UVOT observations
  77. GRB 080413A Bootes observation
  78. GRB080413B: REM NIR & Optical Observation
  79. GRB 080411: Swift/UVOT refined analysis
  80. GRB 080411: Swift-XRT Refined Analysis
  81. Konus-Wind observation of GRB 080411
  82. GRB 080330: Swift-XRT refined position retraction
  83. GRB 080330 optical observations
  84. GRB 080409: Swift detection of a burst
  85. GRB 080408: GRB Localization by SuperAGILE
  86. GRB 080319A: Early RAPTOR optical limits
  87. GRB 080330: RAPTOR detection of prompt optical flash
  88. GRB 080319B: Potential Jet Break Observed by Swift-XRT and UVOT
  89. GRB 080325: optical upper limit
  90. GRB 080328: GAO 150cm telescope Optical Observation
  91. GRB 080319B: TORTORA light curve (Correction)
  92. GRB080328, RIMOTS optical upper limit
  93. GRB 080330: REM optical observations
  94. GRB 080330 Swift-UVOT refined analysis
  95. GRB 080328: Suzaku WAM observation of the prompt emission
  96. Konus-Wind observation of GRB 080328
  97. GRB 080330: Redshift Confirmation from Hobby-Eberly Telescope Spectroscopy
  98. GRB080330: LOAO R-band Detection
  99. GRB 080330: GROND Observations
  100. GRB 080330: error in reported XRT position

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