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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"

15373 results found.

  1. IPN Triangulation of GRB 180703A
  2. GRB 180706A: GOTO optical limits
  3. GRB 180706A: Fermi GBM observation
  4. Konus-Wind observation of GRB 180704A
  5. Konus-Wind observation of GRB 180701A
  6. Konus-Wind observation of GRB 180703B
  7. IPN Triangulation of GRB 180703B
  8. GRB 180705A: Swift detection of a burst
  9. GRB 180704A: AstroSat CZTI detection
  10. GRB 180703A: AstroSat CZTI detection
  11. GRB 180703B: Fermi GBM detection
  12. GRB150101B: INTEGRAL prompt gamma-ray signal from a possible GRB170817A-analogue
  13. GRB 180703B: CALET Gamma-Ray Burst Monitor detection
  14. GRB 180703B: Fermi-LAT detection
  15. GRB 180703A: Fermi-LAT detection
  16. GRB 180703A: Tiled Swift observations
  17. GRB 180701A: MAXI/GSC detection
  18. GRB 180626C : GOTO optical observations
  19. GRB 180626B : GOTO optical observations
  20. GRB 180630A: Fermi GBM detection
  21. GRB 180626C: Zwicky Transient Facility Follow-Up of a Fermi Short GRB (Trigger 551697835)
  22. Konus-Wind observation of GRB 180626A
  23. Konus-Wind observation of GRB 180626C
  24. Konus-Wind observation of GRB 180626B
  25. IPN Triangulation of GRB 180626C (short)
  26. IPN Triangulation of GRB 180626B (short)
  27. GRB 180626A: KAIT Optical Upper Limit
  28. GRB 180626A: COATLI Optical Detection
  29. Konus-Wind observation of GRB 180623A
  30. GRB 180626A: RATIR Optical Detection
  31. GRB 180626A: A long GRB detected by INTEGRAL
  32. AT2018cow: Swift/BAT data search
  33. GRB 180624A: LBT/MODS redshift measurement
  34. GRB 180620B: AstroSat CZTI detection
  35. GRB 180620A: AstroSat CZTI detection
  36. GRB 180618A: AstroSat CZTI detection
  37. GRB 180613A: LCO Afterglow detection
  38. GRB 180624A: GROND observations
  39. GRB 180623A: retraction of the Swift/UVOT Detection
  40. Konus-Wind observation of GRB 180620B
  41. Konus-Wind observation of GRB 180620A
  42. Konus-Wind observation of GRB 180618A (a short GRB with extended emission)
  43. GROND observations of GRB 180620B
  44. GROND observations of GRB 180620A
  45. GRB 180620B: Fermi GBM detection
  46. GRB 180618A: Swift/UVOT Detection
  47. GRB 180620A: COATLI Detection and Light Curve
  48. GRB 180611A: AstroSat CZTI detection
  49. GRB 180618A: Fermi GBM detection
  50. GRB 180529A: AstroSat CZTI detection
  51. GRB 180613A GROND observations: correction
  52. GRB 180613A GROND observations
  53. GRB 180613A: Possible IR afterglow
  54. GRB 180613A: Possible host galaxy at XRT position, or star
  55. Konus-Wind observation of GRB 180611A
  56. GRB 180611A: Fermi GBM observation
  57. GRB 180605A: Fermi GBM observation
  58. GRB 180605A: AstroSat CZTI detection
  59. GRB 180603A: AstroSat CZTI detection
  60. GRB 180602B: Fermi GBM detection
  61. Konus-Wind observation of GRB 180529A
  62. GRB 180529A: CALET Gamma-Ray Burst Monitor detection
  63. Swift Trigger 834937 is not a GRB
  64. Konus-Wind observation of GRB 180526A
  65. Konus-Wind observation of GRB 180523A
  66. GRB 180526A: AstroSat CZTI detection
  67. GRB180523B: Zwicky Transient Facility Follow-Up of a Fermi Short GRB (Trigger 548793993)
  68. GRB 180505A: AstroSat CZTI detection
  69. GRB 180512A: VLT/HAWK-I NIR Observations
  70. Konus-Wind observation of GRB 180510A
  71. GRB 180510B: GROND detection in all bands
  72. GRB 180510B: TAROT La Silla observatory optical observations
  73. GRB 180427A: AstroSat CZTI detection
  74. GRB 180505A: Fermi GBM detection
  75. GRB 180416A: AstroSat CZTI detection
  76. GRB 180504A: ePESSTO NTT NIR observations
  77. GRB 180504A: NOT afterglow candidate
  78. GRB 180416B: AstroSat CZTI detection
  79. Konus-Wind observation of GRB 180427A
  80. GRB 180418A: TAROT La Silla observatory early optical observations
  81. GRB 180418A: MITSuME Ishigakijima Optical Observation
  82. Retraction of IceCube GCN/AMON NOTICE 71165249_130949
  83. GRB 180418A : SQUEAN observations
  84. GRB 180418A: Swift/UVOT Detection
  85. GRB 180418A: Gemini-North imaging and spectroscopy
  86. LIGO/Virgo G299232: LOFAR follow-up
  87. GRB 180404B: AstroSat CZTI detection
  88. GRB 180416A: Fermi GBM detection
  89. GRB 180409A: Swift-XRT afterglow detection
  90. Konus-Wind observation of GRB 180411A
  91. GRB 180411A: Fermi GBM detection
  92. Konus-Wind observation of GRB 180404C
  93. Konus-Wind observation of GRB 180409A
  94. GRB 180409A: Tiled Swift observations
  95. GRB 180407A: Swift-BAT refined analysis
  96. GRB 180407A: COATLI Upper Limits
  97. Konus-Wind observation of GRB 180404B
  98. Fermi GBM triggers 544628550/180405571, 544542853/180404579, 544531428/180404447 are not GRBs
  99. GRB 180402A: Fermi GBM refined spectral analysis
  100. GRB 180404B: Fermi GBM observation

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