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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"

11848 results found.

  1. GRB 180720B: MASTER Global Net OT observations
  2. GRB 180720B: ISON-Castelgrande optical observations
  3. Konus-Wind observation of GRB 180720B
  4. FRB 180714: MASTER optical inspection of the Fast Rado Burst Transient
  5. GRB 180720C: MASTER optical observation
  6. Fermi Trigger 553879512: MASTER optical observation
  7. GRB 180722A: MAXI/GSC detection
  8. GRB 180720B: MITSuME Ishigaki optical observations
  9. GRB 180720C: Swift-BAT refined analysis
  10. GRB 180721A: Swift-XRT refined Analysis
  11. GRB 180720B: Swift-BAT refined analysis
  12. GRB 180721A: Swift detection of a burst
  13. GRB 180720B: MAXI/GSC detection
  14. GRB 180720C: LT observations
  15. GRB 180720C: Fermi GBM observation
  16. GRB 180720B: Swift-XRT refined Analysis
  17. GRB 180720B: MITSuME Akeno optical observations
  18. GRB 180720B: Fermi GBM observation
  19. GRB 180720B : Fermi-LAT detection
  20. GRB 180720B : TSHAO optical observations
  21. GRB 180715A: MASTER optical observation
  22. GRB 180720B: Kanata 1.5m optical/NIR observation
  23. GRB 180720B: LCO Haleakala possible bright optical candidate
  24. GRB 180720A: Fermi GBM observation
  25. GRB 180718B: MASTER optical observation
  26. AGILE/MCAL detection of GRB 180720A
  27. GRB180715B: Zwicky Transient Facility Follow-Up of a Fermi Short GRB (Trigger 553369644)
  28. GRB 180715A: Gemini imaging upper limits
  29. GRB 180718B: Fermi-LAT detection
  30. GRB180714A: a long GRB detected by INTEGRAL
  31. IceCube-170922A: First Optical observations of the Neutrino Trigger by MASTER Global Net and 25 IceCube alerts inspection.
  32. GRB 180705A: OSN observations
  33. GRB 180709A: Enhanced Swift-XRT position
  34. GRB 180709A: Swift detection of a burst
  35. GRB 180705A: RTT150 optical upper limit
  36. Konus-Wind observation of GRB 180703A
  37. GRB 180706A: Swift/UVOT Detection
  38. GRB 180706A: Swift-BAT refined analysis
  39. GRB 180705A: Swift-XRT refined Analysis
  40. Konus-Wind observation of GRB 180704A
  41. GRB 180706A: Swift-XRT refined Analysis
  42. Konus-Wind observation of GRB 180701A
  43. Konus-Wind observation of GRB 180703B
  44. GRB 180706A: Swift detection of a burst with optical counterpart
  45. GRB 180705A: MASTER optical observation
  46. GRB 180703B: Fermi-LAT detection
  47. GRB 180703A: Fermi-LAT detection
  48. GRB 180701A: MAXI/GSC detection
  49. GRB 180630A: Fermi GBM detection
  50. GRB 180626C / Fermi trigger 551697835: MASTER inspection
  51. Konus-Wind observation of GRB 180626A
  52. Konus-Wind observation of GRB 180626C
  53. Konus-Wind observation of GRB 180626B
  54. IPN Triangulation of GRB 180626B (short)
  55. GRB 180626A: Swift-BAT refined analysis
  56. GRB 180626A: KAIT Optical Upper Limit
  57. GRB 180626A: Swift-XRT refined Analysis
  58. GRB 180626A: COATLI Optical Detection
  59. Konus-Wind observation of GRB 180623A
  60. GRB 180626A: LCO Haleakala observations
  61. GRB 180626A: ISON-MN optical observations
  62. GRB 180626A: A long GRB detected by INTEGRAL
  63. GRB 180626A: Swift detection of a burst with an optical counterpart
  64. GRB 180623B: CALET Gamma-Ray Burst Monitor detection
  65. GRB 180624A: LBT/MODS redshift measurement
  66. GRB 180613A: LCO Afterglow detection
  67. GRB 180624A: LCO Siding Springs afterglow candidate
  68. GRB 180624A: Swift-XRT refined Analysis
  69. GRB 180624A: Enhanced Swift-XRT position
  70. GRB 180624A: Swift detection of a burst
  71. GRB 180620B: Swift/UVOT Detection
  72. GRB 180620A iTelescope observation
  73. Konus-Wind observation of GRB 180620B
  74. Konus-Wind observation of GRB 180620A
  75. Konus-Wind observation of GRB 180618A (a short GRB with extended emission)
  76. GROND observations of GRB 180620A
  77. GRB 180620B: Swift-XRT refined Analysis
  78. GRB 180620B: Fermi GBM detection
  79. GRB 180620A: KAIT Optical Observations
  80. GRB 180620A: Xinglong-2.16m optical observations
  81. GRB 180620B: Swift detection of a burst with an optical counterpart
  82. GRB 180620A: COATLI Detection and Light Curve
  83. GRB 180620A: LCO McDonald observations
  84. GRB 180620A: MASTER OT observation
  85. GRB 180618A: Fermi GBM detection
  86. GRB 180618A: Swift-XRT refined Analysis
  87. GRB 180618A: Swift detection of a burst with an optical counterpart
  88. GRB 180614A: MASTER observation
  89. GRB 180613A: Swift-XRT refined Analysis
  90. Konus-Wind observation of GRB 180611A
  91. GRB 180613A: Swift detection of a burst
  92. GRB 180602A: Swift-XRT refined Analysis
  93. GRB 180602A: Swift-BAT refined analysis
  94. GRB 180602A: Swift detection of a burst
  95. Konus-Wind observation of GRB 180529A
  96. Konus-Wind observation of GRB 180526A
  97. Konus-Wind observation of GRB 180523A
  98. IPN Triangulation of GRB 180523A
  99. GRB 180523A: CALET Gamma-Ray Burst Monitor detection
  100. GRB 180514A: 1.5m OSN optical observations

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