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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').
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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"

12407 results found.

  1. GRB 170728A: 15 GHz upper limits from AMI
  2. GRB 170714A: 15 GHz upper limits from AMI
  3. GRB 170711A: 15 GHz upper limits from AMI
  4. GRB 170710C: 15 GHz upper limits from AMI
  5. GRB 170710B: 15 GHz upper limits from AMI
  6. GRB 170626A: 15 GHz upper limits from AMI
  7. LIGO/Virgo G296853: Insight-HXMT observations
  8. LIGO/Virgo G296853 : MAXI/GSC observations
  9. GRB 170810A: Swift/UVOT Detection
  10. LIGO/Virgo G296853: Super-AGILE observations
  11. GMRT upper limit on the radio afterglow of GRB 170728B
  12. LIGO/Virgo G296853: Fermi GBM Observations
  13. LIGO/Virgo G296853: AGILE GRID observations
  14. LIGO/Virgo G296853: Swift/BAT data search
  15. LIGO/Virgo G296853: MASTER follow up observations
  16. LIGO/Virgo G296853 ANTARES search
  17. GRB 170808A: MAXI/GSC detection
  18. GRB 170728B: TShAO, SAO RAS and AbAO optical observations
  19. GRB 170804A: Swift/UVOT Detection
  20. GRB 170803A: Swift/UVOT Detection
  21. Swift Trigger 766161 is not a GRB
  22. GRB 170728B: time correction to MASTER GCN Circular 21391
  23. GRB 170728B: Swift/UVOT Further Analysis
  24. Konus-Wind observation of GRB 170728B
  25. GRB 170728B: MASTER-IAC first minute short GRB early OT detection
  26. GRB 170728B: Swift/UVOT Upper Limits
  27. GRB 170728B iTelescope observation
  28. GRB 170728A: Swift/UVOT Detection
  29. Swift triggers on a new galactic source: Swift J181723.1-164300
  30. GRB170714A: ATCA observation
  31. Trigger 763539 from Swift is probably not astrophysical
  32. Correction to GCN Circular 21351: GRB 170714A: Swift/UVOT Observations
  33. GRB 170714A: Swift/UVOT Observations
  34. GRB 170714A: TNG NIR observations
  35. GRB 170714A: Swift detection of a burst
  36. GRB 170711A: Swift/UVOT Upper Limits
  37. GRB 170711A: RATIR Optical and NIR Observations
  38. GRB 170711A: Swift detection of a burst
  39. GRB 170705A: TShAO optical observations
  40. GRB 170710B: Swift-XRT and UVOT observations
  41. GRB170710A: Swift/UVOT detection
  42. GRB 170710A: Swift detection of a burst
  43. LIGO/Virgo G288732: Konus-Wind observations
  44. Konus-Wind observation of GRB 170705A
  45. GRB 170705A: Swift/UVOT Detection
  46. Konus-Wind observation of GRB 170626B
  47. GRB 170607A: 15 GHz upper limits from AMI
  48. GRB 170626A: MASTER-Tunka OT detection.
  49. LIGO/Virgo G288732: Fermi GBM Upper Limits for the LIGO Trigger and LAT Candidate
  50. Swift trigger 758168 is probably not an astrophysical source
  51. Konus-Wind observation of GRB 170616A
  52. Swift Trigger 756953 is probably not an astrophysical source
  53. GRB170612.87 MASTER-Net OT detection
  54. LIGO/Virgo G288732: HAWC follow-up
  55. GRB 170610A: MAXI/GSC detection
  56. LIGO/Virgo G288732 : MAXI/GSC observations
  57. LIGO/Virgo G288732: Swift/UVOT follow up of the possible LAT counterpart
  58. LIGO/Virgo G288732: Swift/BAT data search
  59. LIGO/Virgo G288732: Swift-XRT follow up of the putative LAT counterpart
  60. LIGO/Virgo G288732: INTEGRAL search for a prompt gamma-ray counterpart
  61. LIGO/Virgo G288732: AGILE GRID Observations
  62. LIGO/Virgo G288732 ANTARES search
  63. LIGO/VIRGO G288732: Fermi GBM Observations
  64. GRB 170526A: 15 GHz upper limits from AMI
  65. GRB 170524A: 15 GHz upper limits from AMI
  66. GRB 170519A: 15 GHz upper limits from AMI
  67. GRB 170604A: Swift/UVOT Observations
  68. Swift trigger 755873: Swift BAT and XRT refined analysis
  69. GRB 170522A: confirmation of the X-ray afterglow
  70. Swift Trigger 755873: MASTER Net optical observations
  71. Swift Trigger 755873: a possible GRB
  72. GRB 170531B: Swift/UVOT Detection
  73. GRB 170531A: Swift/UVOT Upper Limits
  74. GRB 170531A: MASTER Net job
  75. GRB 170531B: MASTER Net OT detection
  76. GRB 170531A: Swift/UVOT Observations
  77. GRB 170531B: Swift detection of a burst
  78. Konus-Wind observation of GRB 170527A
  79. LIGO/Virgo G268556: BSA radio observations at 110 MHz
  80. LIGO/Virgo G268556/GW170104: Konus-Wind observations
  81. GRB 170526A: Swift/UVOT Upper Limits
  82. GRB 170524A: RATIR Optical and NIR Observations
  83. GRB 170524B: Swift-XRT observations
  84. Konus-Wind observation of GRB 170524B
  85. GRB 170524B: MASTER-OAFA observations
  86. GRB 170524A: Swift/UVOT Upper Limits
  87. GRB 170511A: MAXI/GSC detection
  88. GRB 170524A: Swift detection of a burst (or possible new SGR)
  89. GRB 170522A: Swift-XRT observations
  90. GRB 170522A: Global MASTER-Net job
  91. GRB 170510A: Swift-XRT afterglow detection
  92. GRB 170516A: Swift/UVOT Upper Limits
  93. Swift Trigger AXP CXOU J164710.2-455216: MASTER-OAFA observations
  94. GRB 170510A: Global MASTER Net possible OT observations
  95. Konus-Wind observation of GRB 170510A
  96. LIGO/Virgo G284239: Konus-Wind observations
  97. GRB 170510A: Swift-XRT observations
  98. LIGO/Virgo G284239: MAXI/GSC observations
  99. LIGO/Virgo G284239: AstroSat CZTI upper limits
  100. Swift XRT observations of GRB 170424A

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