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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.

Advanced Search Examples (click to copy):

subject:"Swift"
body:"GRB"
submitter:"Judith Racusin"

19321 results found.

  1. GRB 080916B: Enhanced Swift-XRT position
  2. GRB 080916C: Fermi LAT observation
  3. GRB 080916C: Fermi GBM Detection
  4. GRB 080916A: Swift XRT refined analysis
  5. GRB 080916A, Swift-BAT refined analysis
  6. GRB 080916: REM detection of the NIR afterglow
  7. GRB 080916: REM candidate afterglow
  8. GRB 080916: Swift detection of a burst with optical afterglow
  9. GRB 080915B, Swift-BAT refined analysis
  10. GRB 080912 : Fermi GBM detection
  11. GRB 080915: Swift-XRT afterglow detection and analysis
  12. GRB 080915, Swift-BAT refined analysis
  13. GRB 080915: ROTSE-III Optical Limits
  14. GRB 080913: Swift-XRT refined analysis
  15. GRB 080913: GROND photo-z
  16. GRB 080913, Swift-BAT refined analysis
  17. GRB 080913: VLT/FORS2 observations
  18. GRB 080913: Enhanced Swift-XRT position
  19. Swift-BAT/-XRT refined analysis on trigger 324362 (LS I +61 303)
  20. GRB 080906B: Fermi GBM detection
  21. GRB 080905C: Fermi GBM detection
  22. SGR J0501+4516: radio pulsar searches with GBT and WSRT
  23. GRB 080904: Fermi Gamma-ray Burst Monitor detection
  24. GRB 080905B: Fermi Gamma-ray Burst Monitor detection
  25. GRB 080905A: Fermi Gamma-ray Burst Monitor detection
  26. GRB 080906: Swift-XRT Refined Analysis
  27. GRB 080906, Swift-BAT refined analysis
  28. GRB 080905A: NOT and VLT observations
  29. GRB 080905B: Enhanced Swift-XRT position
  30. GRB 080905B, Swift-BAT refined analysis
  31. GRB 080905A, Swift-BAT refined analysis
  32. GRB 080906: Swift detection of a burst with optical afterglow
  33. GRB 080905A: Swift-XRT Refined Analysis
  34. GRB080825C: Fermi-LAT observations
  35. GRB 080905B: Swift detection of a burst with possible optical counterpart
  36. GRB 080903: Swift-XRT Refined Analysis
  37. GRB 080903, Swift-BAT refined analysis
  38. GRB 080903: Swift detection of a burst
  39. GRB 080830: Fermi Gamma-ray Burst Monitor detection
  40. SGR 0501+4516: Spin Down Rate and Inferred Dipole Magnetic Field
  41. SGR 0501+4516: preliminary results of the first XMM-Newton observation
  42. nIR observations of SGR 0501+4516
  43. VLA non-detection of SGR 0501+4516
  44. Swift trigger 322590: BAT detection of a possible burst
  45. GRB 080828: SuperAGILE GRB Localization
  46. GRB080823: Fermi Gamma-ray Burst Monitor detection
  47. GRB 080824: Fermi Gamma Ray Burst Monitor detection
  48. Konus-Wind observation of GRB 080825B
  49. GRB080825C: GLAST Burst Monitor detection
  50. GRB 080825B: Swift-XRT team analysis
  51. SGR 0501+4516: Fermi GBM (formerly GLAST Burst Monitor) observations of three exceptionally intense outbursts
  52. SGR 0501+4516: radio pulsar searches with GBT and WSRT
  53. GRB 080825B: GRB Localization by SuperAGILE
  54. Radio Detection of SGR 0501+4516
  55. GRB 080822B, Swift-BAT refined analysis
  56. New Soft Gamma Repeater 0501+4516 (GRB 080822): GLAST Burst Monitor detection
  57. SGR 0501+4516: Swift-BAT refined analysis of the 3 discovery events
  58. GRB080818B: GLAST Burst Monitor detection
  59. GRB 080822 (SGR 0501+4516): archival optical observations
  60. GLAST Burst Monitor detection of a GRB: 080816B
  61. GLAST Burst Monitor detection of GRB 080818
  62. GLAST Burst Monitor detection of GRB080817B
  63. GLAST Burst Monitor detection of GRB 080817
  64. GLAST Burst Monitor detection of GRB080816
  65. GRB080810 - optical observations
  66. GLAST Burst Monitor detection of GRB 080812
  67. GRB 080810: Konus-Wind and Swift/BAT joint spectral analysis
  68. GLAST Burst Monitor detection of GRB 080810
  69. First GLAST Burst Monitor GRB Circulars
  70. GRB 080810: Swift-XRT Team refined analysis
  71. GRB 080810: ROTSE-III Prompt Detection of Optical Counterpart
  72. GRB 080810, Swift-BAT refined analysis
  73. GRB 080810 : optical observation with KANATA
  74. GRB 080810: Swift detection of a burst with a bright optical afterglow
  75. GRB 080723B: XMM-Newton observation
  76. GRB 080805: Faulkes Telescope South optical observations
  77. GRB 080805: Swift-XRT Refined Analysis
  78. GRB 080804: Swift-XRT Refined Analysis
  79. GRB 080804: Swift/UVOT Refined Analysis
  80. GRB 080805, Swift-BAT refined analysis
  81. GRB 080804, Swift-BAT refined analysis
  82. GRB 080804: Faulkes Telescope South observations
  83. GRB 080804: Swift detection of a burst with optical afterglow
  84. GRB 080804: ROTSE-III Detection of Optical Counterpart
  85. GRB 080802, Swift-BAT refined analysis
  86. GRB 080802: Swift detection of a probable burst
  87. GRB 080727C: Suzaku WAM observation of the prompt emission
  88. GRB 080727C, Swift-BAT refined analysis
  89. GRB 080727C: Swift XRT refined analysis
  90. GRB 080727C: Liverpool Telescope observations
  91. GRB 080727C: Enhanced Swift-XRT position
  92. GRB 080727C: Swift detection of a burst
  93. BAT Trigger 318150 is not a GRB
  94. GRB 080727B: Swift-XRT refined analysis
  95. GRB 080727B, Swift-BAT refined analysis
  96. GRB 080727A, Swift-BAT refined analysis
  97. GRB 080727A: Swift-XRT refined analysis
  98. GRB 080727B: Enhanced Swift-XRT position
  99. GRB 080727A: Enhanced Swift-XRT position
  100. GRB 080726: GRB Localization by SuperAGILE

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