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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 140320B: Swift-XRT refined Analysis
  2. GRB 140402A: Swift-XRT refined Analysis
  3. GRB 140104B: Swift-XRT refined Analysis
  4. IPN triangulation of a bright burst from SGR 1935+2154
  5. GRB 210119A (Swift J1851.2-6148): Swift-BAT refined analysis
  6. GECAM detection of a short GRB 210119A or a new SGR candidate Swift J1851.2-6148
  7. GRB 210119A: Insight-HXMT/HE detection
  8. GRB 210119A: Fermi GBM observation
  9. GRB 210112A: Insight-HXMT/HE detection
  10. Short Fermi GRB 210119A or new SGR Swift J1851.2-6148: Possible MASTER Short OT detection
  11. Swift detection of a new SGR Swift J1851.2-6148 or a short GRB 210119A
  12. GRB 210112A: Deep CAHA 2.2m detection
  13. GRB 210104A: Late-time CAHA 2.2m detection
  14. Konus-Wind detection of GRB 210112A
  15. ZTF21aaeyldq (AT2021any): Detection of X-ray Emission with Swift/XRT
  16. GRB 210104A: JCMT SCUBA-2 sub-mm observations
  17. GRB 210112A: Swift/UVOT Detection
  18. GRB 210112A: 1.3m DFOT Optical upper limit
  19. GRB 210104A: AstroSat CZTI detection
  20. GRB 210112A: Swift-BAT refined analysis
  21. GRB 210112A: Swift-XRT refined Analysis
  22. GRB 210112A: AGILE detection
  23. GRB 210112A: Kitab a optical upper limit
  24. GRB 210112A: Enhanced Swift-XRT position
  25. GRB 210112A: Swift detection of a burst with an optical counterpart
  26. Correction to GCN 29278: GRB 201216C XRT refined analysis
  27. GRB 201216C: Swift-XRT refined Analysis
  28. GRB 201227A: ASIM observation
  29. GRB 210104A: SARA-KP 0.9m Optical Afterglow Detection
  30. GRB 210102B: further Swift-XRT observations
  31. GRB 210104A: CALET Gamma-Ray Burst Monitor detection
  32. GRB 210104B: Swift-BAT refined analysis
  33. GRB 210104A: early ATLAS detections of the bright afterglow
  34. GRB 210104A: Swift-XRT refined Analysis
  35. GRB 210104B: Swift/UVOT Upper Limits
  36. Konus-Wind detection of GRB 210104A
  37. GRB 210104A: 1.3m DFOT Optical Afterglow Detection
  38. GRB 210104B: Swift-XRT refined Analysis
  39. GRB 210104B: Enhanced Swift-XRT position
  40. GRB 210104A: Swift-BAT refined analysis
  41. GRB 210104B: Nanshan/NEXT optical upper limit
  42. GRB 210104B: BOOTES network optical upper limit
  43. GRB 210104A: MASTER OT rebrightening detection
  44. GRB 210104A: Swift/UVOT Detection
  45. GRB 210104A: Fermi GBM detection
  46. GRB 210104A: Enhanced Swift-XRT position
  47. GRB 210102B: Tiled Swift observations
  48. GRB 210104B: Swift detection of a burst
  49. Swift GRB210104.88: Global MASTER-Net observations report
  50. GRB 210104A: MITSuME Ishigaki optical observation
  51. GRB 210104A: MITSuME Akeno optical observation
  52. GRB 210104A: BOOTES-4/MET early optical afterglow detection
  53. GRB 210104A: Swift detection of a burst with a bright optical counterpart
  54. GRB 210102C: Swift-BAT refined analysis
  55. GRB 210102B: Swift-XRT observations
  56. GRB 210102C: Fermi GBM detection
  57. Swift GRB 210102C: Global MASTER-Net observations report
  58. GRB 210102C: Swift detection of a burst
  59. GRB 210102B: Tiled Swift observations
  60. Swift Trigger 1015615 is not a GRB
  61. Swift GRB210102.01: Global MASTER-Net observations report
  62. GRB 201229A: Swift/UVOT Detection
  63. GRB 201227A: GRAWITA VST-ESO PARANAL observations
  64. GRB 201229A: SAO RAS optical observations
  65. GRB 201229A: Nanshan/NEXT optical upper limit
  66. GRB 201227A: Swift-XRT observations
  67. GRB 201223A: SVOM-GWAC detected the optical counterpart during prompt emission phase
  68. GRB 201229A: Swift-XRT refined Analysis
  69. GRB 201229A: Swift-BAT refined analysis
  70. GRB 201229A: Enhanced Swift-XRT position
  71. GRB 201229A: Swift detection of a burst with a possible optical counterpart
  72. GRB 201227A: Tiled Swift observations
  73. GRB 201227A: Swift ToO observations
  74. IPN triangulation of GRB 201227A (short)
  75. GRB 201223A: AROMA-N Optical Observation
  76. GRB 201223A: Swift/UVOT Detection
  77. GRB 201223A: HCT optical upper limit
  78. GRB 201223A: 1.3m DFOT and 1.04m ST optical observations
  79. GRB 201223A: Swift-XRT refined Analysis
  80. GRB 201223A: Enhanced Swift-XRT position
  81. GRB 201223A: GROWTH-India Telescope (GIT) photometric follow-up.
  82. GRB 201223A: MITSuME Akeno optical observation
  83. GRB 201223A: Swift-BAT refined analysis
  84. GRB 201223A: Fermi GBM Detection
  85. GRB 201223A: BOOTES-4/MET early optical observation
  86. GRB 201223A: Nanshan/NEXT early optical afterglow detection
  87. GRB 201223A: Swift detection of a burst with a bright optical counterpart
  88. Swift GRB201223.75: Global MASTER-Net OT detection
  89. Swift GRB201223.75: Global MASTER-Net observations report
  90. Swift-XRT observations of Icecube 201222A
  91. GRB 201221A: Konus-Wind detection and joint Konus-Wind + Swift-BAT spectral analysis
  92. GRB 201221D: MMT MMIRS detection of marginally extended source
  93. GRB 201221D: LCOGT upper limits
  94. GRB 201221D: Fermi GBM detection
  95. GRB 201221D: Swift-BAT refined analysis
  96. Swift Trigger 1014012 (possible GRB 201221C) is likely not an astrophysical event
  97. GRB 201216A - further Swift-XRT observations
  98. Konus-Wind detection of GRB 201221D (short)
  99. GRB 201221D: Swift/UVOT Upper Limits
  100. GRB 201221D: Lowell Discovery Telescope afterglow observations

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