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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"

45763 results found.

  1. GRB 130907A: Maidanak optical observations
  2. GRB 130912A: AAO optical upper limit
  3. Fermi Trigger 401326696: MASTER prompt optical observations
  4. GRB 130831A: Maidanak optical observations, possible emerging Supernova
  5. INTEGRAL detection of a SGR-like burst likely from SGR J1745-29
  6. GRB 130919A: Skynet PROMPT-CTIO optical upper limits
  7. GRB 130919A, Swift-BAT refined analysis
  8. GRB 130913A detected in ground analysis of Swift-BAT data
  9. GRB 130919A: Swift detection of a burst
  10. GRB 130903A: Further Swift XRT observations.
  11. GRB 130606A: Chandra observation
  12. GRB 130912A: Swift/UVOT Upper Limits
  13. Fermi/GBM Detection of two SGR-like bursts possibly associated with SGR J1833-0832
  14. GRB 130912A: 5.8 GHz VLA upper limit
  15. GRB 130912A: RATIR Optical and NIR Upper Limits
  16. Konus-Wind observation of GRB 130912A
  17. GRB 130912A: WHT confirmation of optical counterpart
  18. GRB 130907A: Continued RATIR Optical and NIR Observations
  19. GRB 130912A: P60 Observations
  20. GRB 130912A: Swift-XRT refined Analysis
  21. GRB 130907A: MASTER refined analysis
  22. GRB 130912A: Fermi GBM detection
  23. GRB 130912A: Skynet DSO-14/Yerkes-41/PROMPT-CTIO observations
  24. GRB 130912A: Enhanced Swift-XRT position
  25. GRB 130912A, Swift-BAT refined analysis
  26. GRB 130912A: REM optical/NIR upper limits
  27. GRB 130912A: GROND observations
  28. GRB 130912A: KAIT optical upper limit
  29. GRB 130912A: Swift detection of a short burst
  30. GRB 130907A: AMI radio detection
  31. GRB 120419A: Swift XRT confirmation of the afterglow
  32. GRB 130907A: Continued RATIR Optical and NIR Observations
  33. GRB 130907A: RATIR Optical and NIR Observations
  34. GRB 130907A: WSRT radio detection
  35. GRB 130828A: Further Swift XRT observations
  36. GRB 130907A: Further Swift-BAT refined analysis
  37. GRB 130907A: INTEGRAL/SPI-ACS light curve
  38. Konus-Wind observation of GRB 130907A
  39. GRB 130907A, Swift-BAT refined analysis
  40. GRB 130907A: VLA detection
  41. GRB 130907A: Swift-XRT refined Analysis
  42. GRB 130907A: Enhanced Swift-XRT position
  43. Errata of GRB name in GCN 15196: should have been GRB 130907A instead of GRB 120916A
  44. GRB 120916A: Fermi-LAT detection of a burst
  45. GRB 130907A: Swift/UVOT Detection
  46. GRB 130907A: Early Tautenburg detections, red afterglow
  47. GRB 130907A: Skynet DSO-14/Yerkes-41/GORT confirmation of a fading afterglow
  48. GRB 130907A: RATIR Optical and NIR Afterglow Confirmation
  49. GRB 130907A: Skynet DSO-14/Yerkes-41 detections of a possible afterglow
  50. GRB 130831A: Maidanak optical observations
  51. GRB 130831A: optical observation in Chuguev AO
  52. GRB 130831A: ISON-Kislovodsk optical observations
  53. GRB 130907A: NOT redshift
  54. GRB 130831A: optical observation in Gissar AO
  55. GRB 130831A: ISON-UAFO optical observations
  56. GRB 130907A: MASTER early OT observations
  57. GRB 130907A: Swift detection of a burst with an optical counterpart
  58. Swift follow-up results of the possible weak INTEGRAL GRB
  59. GRB 130903A: Swift/UVOT Upper Limits
  60. Swift follow-up of an INTEGRAL possible weak GRB
  61. GRB 130831A: RATIR Optical and NIR Upper Limits
  62. GRB 130822A: nearby galaxy redshifts
  63. GRB 130903A: GROND Afterglow Discovery
  64. GRB 130903A: MASTER early optical limit
  65. GRB 130903A: Fermi GBM observation
  66. GRB 130831A: JCMT SCUBA-2 sub-mm observation
  67. GRB 130903A: Swift-XRT observations
  68. Swift trigger 569022 is a new Galactic source Swift J1734.5-3027
  69. GRB 130903A: ISON-Kislovodsk optical Upper Limits
  70. GRB 130903A: GROND Upper Limits
  71. GRB 130903A: A long GRB detected by INTEGRAL
  72. GRB 130831A: Swift/UVOT Observations
  73. GRB 130831A: Montarrenti Observatory optical follow-up
  74. GRB 130831A: Optical Observations via Virtual Telescope, follow-up
  75. GRB 130831A: RATIR Optical and NIR Observations
  76. GRB 130831A: Continued Skynet/PROMPT-SSO, PROMPT-CTIO and Yerkes-41 detections
  77. GRB 130831B, Swift-BAT refined analysis
  78. GRB 130831A: VLA Observations
  79. GRB 130831A: T100 observations
  80. GRB 130831B: Swift/UVOT Upper Limits
  81. GRB 130831A: CARMA mm upper limit
  82. GRB 130831B: GROND upper limits
  83. Swift Trigger 569022: a possible GRB
  84. GRB 130831A: THO optical observation
  85. GRB 130831A, Swift-BAT refined analysis
  86. GRB 130831B: Swift-XRT refined Analysis
  87. GRB 130831A: optical observations
  88. GRB 130831A: Optical Observations via Virtual Telescope
  89. GRB 130831A: Swift-XRT refined Analysis
  90. GRB 130831A: Montarrenti Observatory optical observations
  91. GRB 130831B: Enhanced Swift-XRT position
  92. GRB 130831A: Skynet/PROMPT-SSO detections
  93. GRB 130831A: Enhanced Swift-XRT position
  94. GRB 130831A : Xinglong 60cm optical observation
  95. Konus-Wind observation of GRB 130831A
  96. GRB 130831A: Gemini-North Redshift
  97. GRB 130831A: MITSuME Akeno Optical observation
  98. GRB 130831A: Weihai optical observations
  99. GRB 130831B: Swift detection of a burst
  100. GRB 130831A: Faulkes Telescope North and South optical afterglow

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