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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.

"200205A/SWIFT J0840.7-3516" does not adhere to advanced search syntax. Please refer to the documentation and try again.
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"

19666 results found.

  1. GRB 191004A: correction to reported GROND upper limits
  2. LIGO/Virgo S191129u: Swift/BAT in SAA
  3. GRB 191123A: Swift/UVOT further analysis
  4. GRB 191123A: Swift-BAT refined analysis
  5. GRB 191123A: Swift-XRT refined Analysis
  6. GRB 191123A: Enhanced Swift-XRT position
  7. GRB 191123A: Swift/UVOT detection
  8. GRB 191123A: Swift detection of a burst with an optical counterpart
  9. GRB 191122A: Swift/UVOT Upper Limits
  10. GRB 191122A: Swift-BAT refined analysis
  11. GRB 191122A: Swift-XRT refined Analysis
  12. GRB 191122A: BOOTES-4/MET optical limit
  13. GRB 191122A: Enhanced Swift-XRT position
  14. GRB 191122A: Prompt enhanced Swift-XRT position
  15. GRB 191122A: Swift detection of a burst
  16. Swift Trigger 937114 is not an astrophysical source
  17. Swift GRB191115A: Global MASTER-Net observations report
  18. Announcing the GW Treasure Map
  19. GRB 191031D: CALET Gamma-Ray Burst Monitor detection
  20. LIGO/Virgo S191110af: Swift XRT observations, no secure afterglow found
  21. LIGO/Virgo S191110af: no counterpart candidates in the Swift/BAT observations
  22. LIGO/Virgo S191109d: no counterpart candidates in the Swift/BAT observations
  23. GRB 191106A: AstroSat CZTI detection
  24. GRB 191106A: Swift/UVOT Upper Limits
  25. GRB 191106A: Swift-BAT refined analysis
  26. LIGO/Virgo S191105e: no counterpart candidates in the Swift/BAT observations
  27. GRB 191106A: Swift-XRT refined Analysis
  28. GRB 191106A: BOOTES-4/MET optical limit
  29. GRB 191106A: MASTER optical observation
  30. GRB 191106A: Swift detection of a burst
  31. GRB191016A GROND observations
  32. Swift trigger 933276 MASTER observation
  33. Trigger 933285: Swift detection of the brightest burst so far from SGR 1935+2154
  34. Swift GRB191105.01: Global MASTER-Net observations report
  35. Trigger 933276: Swift detection of further activity from SGR 1935+2154
  36. Swift GRB191105.01: Global MASTER-Net OT detection
  37. GRB 191101A: Swift-BAT refined analysis
  38. GRB 191101A: Swift/UVOT Upper Limits
  39. SGR 1935+2154: Swift-BAT refined analysis
  40. GRB 191104B/GRB 191104C are SGR 1935+2154
  41. Trigger 933083: Swift detection of SGR 1935+2154
  42. GRB 191031D: Zwicky Transient Facility Follow-Up of a Swift Short GRB (Trigger 594249816/191031891)
  43. GRB 191031C: Insight-HXMT/HE detection
  44. GRB 191101A: Swift-XRT refined Analysis
  45. GRB 191101A: VIRT Optical Upper Limits
  46. GRB 191101A: Enhanced Swift-XRT position
  47. Swift GRB191101.88: Global MASTER-Net observations report
  48. GRB 191101A: Prompt enhanced Swift-XRT position
  49. GRB 191101A: Swift detection of a burst
  50. GRB 191031D: Swift-BAT refined analysis
  51. GRB 191031C: Swift-BAT refined analysis
  52. GRB 191031A: Swift-BAT refined analysis
  53. GRB 191031C: Swift-XRT refined Analysis
  54. GRB 191031D: AstroSat CZTI detection
  55. GRB 191031D: Swift/UVOT Upper Limits
  56. GRB 191031C: Swift/UVOT Detection
  57. Konus-Wind observation of GRB 191031D
  58. GRB 191031D: Swift-XRT refined Analysis
  59. GRB 191031D: AGILE/MCAL observations
  60. GRB 191031D: RATIR Optical and NIR Observations
  61. GRB 191031C: Fermi GBM detection
  62. GRB 191031D: Fermi GBM detection
  63. GRB 191031D: Enhanced Swift-XRT position
  64. GRB 191031A: Fermi GBM detection
  65. GRB 191031C: Enhanced Swift-XRT position
  66. Swift GRB191031.89: Global MASTER-Net observations report
  67. GRB 191031D: Swift detection of a short hard burst
  68. GRB 191029A: Swift-BAT refined analysis
  69. GRB 191031C: Prompt enhanced Swift-XRT position
  70. GRB 191031C: Swift detection of a burst
  71. GRB 191031A: Swift detection of a burst
  72. GRB 191029A: CORRECTED Swift-XRT refined analysis
  73. GRB 191029A: Swift/UVOT Upper Limits
  74. GRB 191029A: Enhanced Swift-XRT position
  75. GRB 191029A: Swift-XRT refined Analysis
  76. GRB 191029A: BOOTES-4/MET optical limit
  77. GRB 191029A: Swift-XRT observations
  78. GRB 191029A: Swift detection of a burst
  79. IPN triangulation of GRB 191027A
  80. Swift/BAT Trigger 931384 is not a GRB ( 191025A )
  81. Swift Trigger 931484 is not a GRB
  82. Possible GRB 191025A: FRAM-Auger optical limit
  83. Swift Trigger 931384: possible GRB 191025A
  84. GRB 191024A: Swift-BAT refined analysis
  85. GRB 191024A: Swift/UVOT Upper Limits
  86. GRB 191024A: Afterglow Upper Limits with LCO
  87. GRB 191024A: Swift-XRT refined Analysis
  88. GRB 191024A: GROND early upper limits
  89. GRB191024A: MASTER optical observation
  90. GRB 191024A: Enhanced Swift-XRT position
  91. GRB 191024A: Swift detection of a burst
  92. Swift GRB191020.89: Global MASTER-Net OT detection
  93. GRB 191019A: Swift/UVOT Detection
  94. HAWC-191019A: No Neutrino Counterpart detected with ANTARES
  95. GRB 191019A: Swift-XRT updated analysis
  96. Swift GRB191020.81: Global MASTER-Net OT detection
  97. GRB 191019A: Swift-BAT refined analysis
  98. GRB 191019A: Swift-XRT refined Analysis
  99. Swift GRB191019.67: Global MASTER-Net observations report
  100. GRB 191019A: Enhanced Swift-XRT position

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