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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"

15375 results found.

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

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