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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"

36116 results found.

  1. GRB 180716A: CALET Gamma-Ray Burst Monitor detection
  2. GRB 180718A: Swift ToO observations
  3. GRB 180718B: Swift ToO observations
  4. GRB 180718B: Fermi-LAT detection
  5. GRB 180718A: Fermi GBM detection
  6. GRB 180718A short GRB detected by IPN and found in ground analysis of BAT data
  7. GRB 180715A: CALET Gamma-Ray Burst Monitor detection
  8. GRB 180715A: LCO Sutherland observations
  9. GRB 180715A: COATLI Optical Observations
  10. GRB 180715A: Swift-XRT observations
  11. GRB 180715A: Fermi GBM detection
  12. GRB 180715A: Swift-BAT refined analysis
  13. GRB 180715A: GOTO optical limits
  14. GRB 180715A: LCO Sutherland possible optical candidate
  15. GRB 180715A: Swift-XRT observations
  16. GRB 180715A: Swift detection of a short hard burst
  17. GRB180714A: a long GRB detected by INTEGRAL
  18. GRB 180703A: optical afterglow confirmation
  19. GRB 180711A: CALET Gamma-Ray Burst Monitor detection
  20. GRB 180705A: OSN observations
  21. GRB 180709A: BOOTES-5/JGT optical observations
  22. GRB 180709A: Swift-BAT refined analysis
  23. GRB 180709A: Swift/UVOT Upper Limits
  24. GRB 180709A: Swift-XRT refined Analysis
  25. GRB 180709A: Optical limits
  26. GRB 180709A: COATLI Optical Observations
  27. GRB 180709A: Enhanced Swift-XRT position
  28. GRB 180703B: further analysis of CGBM data
  29. GRB 180703A: Swift-XRT afterglow detection
  30. GRB 180709A: Swift detection of a burst
  31. GRB 180705A: RTT150 optical upper limit
  32. Konus-Wind observation of GRB 180703A
  33. GRB 180703A: MASTER optical observation
  34. IPN Triangulation of GRB 180703A
  35. GRB 180706A: GOTO optical limits
  36. GRB 180706A: TSHAO optical observations
  37. GRB 180706A: Swift/UVOT Detection
  38. GRB 180706A: Swift-BAT refined analysis
  39. GRB 180705A: Swift-XRT refined Analysis
  40. GRB 180706A: Fermi GBM observation
  41. Konus-Wind observation of GRB 180704A
  42. GRB 180706A: Swift-XRT refined Analysis
  43. GRB 180706A: Enhanced Swift-XRT position
  44. Konus-Wind observation of GRB 180701A
  45. Konus-Wind observation of GRB 180703B
  46. GRB 180705A: TSHAO optical upper limit
  47. GRB 180705A: Swift/UVOT Upper Limits
  48. GRB 180705A: RATIR Optical Observations
  49. GRB 180706A: COATLI Optical Detection
  50. GRB 180706A: Swift detection of a burst with optical counterpart
  51. IPN Triangulation of GRB 180703B
  52. GRB 180705A: Swift-BAT refined analysis
  53. GRB 180705A: Enhanced Swift-XRT position
  54. GRB 180705A: MASTER optical observation
  55. GRB 180705A: Swift-XRT observations
  56. GRB 180705A: Swift detection of a burst
  57. GRB 180704A: AstroSat CZTI detection
  58. GRB 180703A: AstroSat CZTI detection
  59. GRB 180704B: CALET Gamma-Ray Burst Monitor detection
  60. GRB 180703A: Swift/UVOT Upper Limits
  61. GRB 180703B: Fermi GBM detection
  62. GRB 180703A: Fermi GBM detection
  63. GRB 180704A: Swift-XRT refined Analysis
  64. GRB 180704A: Swift-BAT refined analysis
  65. GRB 180704A: Swift/UVOT Upper Limits
  66. GRB 180703A: LCO Sutherland possible optical candidate
  67. GRB 180703A: Swift-XRT observations
  68. GRB 180704A: Enhanced Swift-XRT position
  69. GRB150101B: INTEGRAL prompt gamma-ray signal from a possible GRB170817A-analogue
  70. GRB 180703B: CALET Gamma-Ray Burst Monitor detection
  71. GRB 180704A: Swift-XRT observations
  72. GRB 180704A: MASTER optical observation
  73. GRB 180704A: Swift detection of a burst
  74. GRB 180703B: Fermi-LAT detection
  75. GRB 180703A: Fermi-LAT detection
  76. GRB 180703A: Tiled Swift observations
  77. GRB 180630A: Swift/UVOT Detection
  78. GRB 180701A: MAXI/GSC detection
  79. GRB 180626C : GOTO optical observations
  80. GRB 180626B : GOTO optical observations
  81. GRB 180630A: Swift-BAT refined analysis
  82. GRB 180630A: Swift-XRT refined Analysis
  83. GRB 180630A: Fermi GBM detection
  84. GRB 180626C / Fermi trigger 551697835: MASTER inspection
  85. GRB 180630A: Enhanced Swift-XRT position
  86. GRB 180630A: Swift detection of a burst with an optical counterpart
  87. GRB 180626C: Zwicky Transient Facility Follow-Up of a Fermi Short GRB (Trigger 551697835)
  88. GRB 180626A: TSHAO optical upper limit
  89. Konus-Wind observation of GRB 180626A
  90. Konus-Wind observation of GRB 180626C
  91. GRB 180624A: NOT optical counterpart
  92. Konus-Wind observation of GRB 180626B
  93. GRB 180626A: RATIR Optical Observations
  94. IPN Triangulation of GRB 180626C (short)
  95. IPN Triangulation of GRB 180626B (short)
  96. GRB 180626A: Swift-BAT refined analysis
  97. GRB 180626A: KAIT Optical Upper Limit
  98. GRB 180626A: Swift-XRT refined Analysis
  99. GRB 180626A: COATLI Optical Detection
  100. GRB 180624A: LCO Haleakala observations

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