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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"

28228 results found.

  1. GRB 081001: Observations from OSN
  2. GRB 080925: Suzaku WAM observation of the prompt emission
  3. GRB 081001: Swift UVOT Observations
  4. GRB 081001: Swift-XRT position
  5. GRB081001: SuperAGILE Localization of a long GRB
  6. GRB 080928: Watcher observations
  7. GRB 080927: Fermi GBM detection
  8. GRB 080928: VLT redshift
  9. GRB 080928: Swift-XRT refined analysis
  10. GRB 080928, Swift-BAT final refined analysis
  11. GRB 080928: GROND DETECTION
  12. GRB 080928: Enhanced Swift-XRT position
  13. GRB 080928, Swift-BAT initial refined analysis
  14. GRB 080928A: ROTSE-III Confirmation of Optical Counterpart
  15. GRB 080928: Swift detection of a burst with an optical counterpart
  16. GRB 080925: Fermi GBM Detection
  17. GRB 080920: Fermi GBM detection
  18. GRB080922, optical upper limit
  19. Swift trigger 325707: Swift/UVOT Upper Limits
  20. Swift trigger 325707: Swift-XRT upper limit
  21. Swift detection of a possible GRB (trigger 325707)
  22. GRB080916A: Suzaku WAM observation of the prompt emission
  23. GRB 080922: Swift/UVOT Upper Limits
  24. GRB080922: Swift-XRT upper limit
  25. GRB080922: A long GRB detected by INTEGRAL
  26. GRB 080913B: Fermi GBM detection
  27. Trigger 324561: IGR J08408-4503 detected by Swift
  28. GRB 080919: Swift-XRT refined analysis
  29. GRB 080919, Swift-BAT refined analysis
  30. GRB 080916C: IRSF/SIRUS NIR Observation
  31. GRB 080916C: GROND Confirmation of the Optical Afterglow
  32. GRB 080916C: GROND Confirmation of the Optical Afterglow
  33. GRB 080919: REM NIR observations
  34. GRB 080919: Swift detection of a short burst
  35. GRB 080915A: GROND upper limits
  36. GRB 080916A: GROND lightcurve
  37. SGR 0501+4516: preliminary results of the Suzaku ToO observation
  38. GRB 080916A: Fermi GBM detection
  39. GRB 080916C: Swift UVOT Refined Analysis
  40. GRB 080916C: Swift XRT refined analysis
  41. GRB 080916B: Swift-XRT refined analysis
  42. Konus-Wind observation of GRB 080916A
  43. GRB 080916C: GROND Detection of the Optical Afterglow Candidate
  44. GRB 080913: Konus-Wind and Swift/BAT joint spectral analysis
  45. GRB 080916C: Enhanced XRT position
  46. GRB080916A: Spectroscopic redshift
  47. GRB 080916C: Swift/XRT detection of possible afterglow
  48. GRB 080916B: Swift UVOT Refined Analysis
  49. GRB 080916B, Swift-BAT refined analysis
  50. GRB080916A: Refined Swift/UVOT Observations
  51. GRB 080915a, SMARTS optical/IR observations
  52. GRB 080916B: Enhanced Swift-XRT position
  53. GRB 080916C: Fermi LAT observation
  54. GRB 080916C: Fermi GBM Detection
  55. GRB 080916A: Swift XRT refined analysis
  56. GRB 080916A, Swift-BAT refined analysis
  57. GRB 080916B: Swift-XRT afterglow detection
  58. GRB 080916A: Enhanced Swift-XRT position
  59. GRB 080916: REM detection of the NIR afterglow
  60. GRB 080916: REM candidate afterglow
  61. GRB 080916: Swift detection of a burst with optical afterglow
  62. GRB 080915B, Swift-BAT refined analysis
  63. GRB 080912 : Fermi GBM detection
  64. GRB 080915: REM NIR early observations
  65. GRB 080915: Swift/UVOT Upper Limits
  66. GRB 080915: Swift-XRT afterglow detection and analysis
  67. GRB 080915, Swift-BAT refined analysis
  68. GRB 080915: ROTSE-III Optical Limits
  69. GRB 080913: Swift-XRT refined analysis
  70. GRB080913: Swift/UVOT Upper Limits
  71. GRB 080913, Swift-BAT refined analysis
  72. GRB 080913: VLT/FORS2 observations
  73. GRB 080913: REM NIR early observations
  74. GRB 080913: Enhanced Swift-XRT position
  75. GRB 080913: GROND observation of a high-z optical/NIR afterglow candidate
  76. GRB 080913: Swift detection of a burst
  77. GRB 080906: Watcher observations
  78. Swift-BAT/-XRT refined analysis on trigger 324362 (LS I +61 303)
  79. GRB 080906B: Fermi GBM detection
  80. GRB 080905C: Fermi GBM detection
  81. SGR J0501+4516: radio pulsar searches with GBT and WSRT
  82. Swift trigger 324362 (LS I +61 303 ?)
  83. GRB080905A: Swift/UVOT Upper Limits
  84. GRB 080905B: Watcher optical detection
  85. GRB 080904: Fermi Gamma-ray Burst Monitor detection
  86. GRB 080905B: Fermi Gamma-ray Burst Monitor detection
  87. GRB 080905A: Fermi Gamma-ray Burst Monitor detection
  88. GRB 080905A: MITSuME Akeno optical upper limits
  89. GRB 080906: Refined Swift/UVOT Observations
  90. GRB 080906: Swift-XRT Refined Analysis
  91. GRB 080906, Swift-BAT refined analysis
  92. GRB 080905A: optical afterglow
  93. GRB 080906: GROND observations of the optical/NIR afterglow
  94. GRB 080905B: Refined UVOT Analysis
  95. GRB 080905B: VLT redshift
  96. GRB 080905A: NOT and VLT observations
  97. GRB 080905B: Enhanced Swift-XRT position
  98. GRB 080905B, Swift-BAT refined analysis
  99. GRB 080905A, Swift-BAT refined analysis
  100. GRB 080906: Swift detection of a burst with optical afterglow

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