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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').
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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"

36284 results found.

  1. GRB061217: Swift/UVOT refined analysis.
  2. GRB 061217: optical observations at Calar Alto
  3. GRB061217 - Swift/XRT refined analysis
  4. GRB 061217, Further Swift-BAT refined analysis of the short hard burst
  5. GRB 061217, Swift-BAT refined analysis
  6. GRB 061217: Magellan Observations
  7. GRB 061217: REM prompt observations
  8. GRB 061217: ROTSE-III Optical Limits
  9. GRB 061217: Swift detection of a short hard burst
  10. GRB 061210: MDM Follow-up Observation
  11. Swift-BAT Trigger 250908 is a Cosmic Ray Shower event
  12. GRB 061210: Optical sources near XRT positions
  13. GRB 061210: Swift XRT analysis - Possible counterparts
  14. GRB 061210 : Faulkes North Telescope optical limit
  15. GRB 061214(?): ROTSE-III Optical Limits
  16. GRB 061214(?): Swift detection of a possible burst
  17. GRB 061210: Suzaku WAM observation of the prompt emission
  18. GRB 061213: MASTER-VWF-Kislovodsk OT candidate retraction
  19. GRB 061213: MASTER-VWF-Kislovodsk optical candidate
  20. GRB 061213: MASTER-VWF-Kislovodsk observations
  21. GRB 061210: Gemini/GMOS Observations
  22. GRB 061126: Radio Observations
  23. GRB061210: Radio Observations
  24. GRB061201, VLT optical decay: correction
  25. GRB 061126: a GRB detected off-axis by INTEGRAL
  26. GRB 061202: Suzaku WAM observation of the prompt emission
  27. GRB 061210: MDM Observation
  28. GRB 061210, Swift-BAT refined analysis of the SHB
  29. GRB 061210: Swift-BAT detection of a short burst
  30. Optical Afterglow observations of GRB 061126
  31. GRB061126: optical observations
  32. GRB 060926: MASTER: discovery of the optical flare
  33. Corrections for Swift/UVOT Exposure Times for GRBs 061110B and 061121
  34. GRB 061201: UVOT Observations of a Fading Optical Afterglow
  35. GRB 061202: TORTOREM optical upper limits
  36. GRB 061201: VLT optical decay
  37. GRB 061201: SOAR Confirmation of Candidate Afterglow
  38. GRB 061202: Swift XRT refined analysis
  39. GRB061202: FRAM early follow-up limit
  40. GRB061202 optical limit by "Pi of the Sky"
  41. Konus-Wind observation of GRB 061201
  42. GRB061202: optical/NIR observations with REM
  43. GRB061202: Swift/UVOT Upper Limits
  44. GRB 061202, Swift-BAT refined analysis
  45. GRB 061202: Swift detection of a burst
  46. GRB 061201: Swift XRT Team refined analysis
  47. GRB 061201: VLT optical observations
  48. GRB 061201: Initial UVOT Observations
  49. GRB 061201, Swift-BAT refined analysis of the SHB
  50. GRB 061201: Swift detection of a short hard burst
  51. GRB 061201: Coincidence with a Galaxy Cluster
  52. GRB 061122: GETS observation
  53. GRB 061121, SMARTS optical/IR observations
  54. GRB 061121: flattening of the decay
  55. INT+WFC observations of GRB 061126
  56. GRB 061126: Possible Jet Break
  57. GRB 061121: Second Epoch ATCA Radio Observations
  58. GRB 061126: RAPTOR Optical Detection During Gamma-Ray Emission
  59. GRB 061121: ATCA & WSRT Radio Observations
  60. GRB061121: optical observations
  61. GRB 061126: Early Super-LOTIS Observations
  62. GRB 061126: optical observation
  63. GRB 061126: Tautenburg afterglow observations
  64. GRB 061126 : SDSS Pre-Burst Observations
  65. GRB 061126: Swift-XRT refined analysis
  66. GRB 061126: Swift/UVOT Observations
  67. GRB 061126, Swift-BAT refined analysis
  68. GRB 061126: SARA Observations
  69. GRB 061126: Early Detection of the IR Afterglow
  70. GRB 061126: Faulkes Telescope North Optical Observations
  71. GRB 061126: Swift/UVOT Afterglow Detection
  72. GRB 061126: XRT position
  73. GRB 061126: Swift detection of a burst
  74. GRB 061121: MDM Continued Monitoring
  75. GRB 061122: Confirmation of X-ray/Optical Afterglow
  76. GRB 061121: MDM Continuing Optical Decay
  77. GRB061121: optical observations
  78. GRB 061122: Candidate Optical Afterglow
  79. GRB 061121: Ep,i - Eiso correlation
  80. GRB 061121: MDM Optical Decay
  81. GRB061122: Swift/UVOT Optical Observations
  82. GRB 061121: ART detection in Ic
  83. GRB061121: P60 Observations
  84. Radio detection of GRB 061121
  85. GRB061122: Swift-XRT position
  86. Konus-Wind observation of GRB 061122
  87. GRB 061121: MDM Optical Observations
  88. GRB 061121 declared "Burst of Interest" by Swift team
  89. Konus-Wind and Konus-A observations of GRB 061121
  90. INTEGRAL results on GRB 061122
  91. Swift-BAT trigger 239987 is not a GRB
  92. GRB 061122A: a long GRB detected by INTEGRAL
  93. GRB 061121: Swift/UVOT Observations
  94. GRB 061121: Swift-XRT Team Refined Analysis
  95. GRB 061121, Swift-BAT refined analysis
  96. GRB 061121 : Planned XMM-Newton observation
  97. GRB 061121: Optical observation at the KANATA 1.5m telescope
  98. GRB 061121: Faulkes Telescope North Optical Observation
  99. GRB061121: Spectroscopic Redshift
  100. GRB 061121: ROTSE-III Confirmation of Optical Counterpart

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