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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"

41948 results found.

  1. GRB 051210: A short GRB in a cluster?
  2. GRB 051210: Swift detection of a burst
  3. IPN observations of SGR1806-20
  4. An extraordinary long burst on December 3 from SGR1806-20
  5. Possible resuming of the SGR 1806-20 activity
  6. GRB051117B: optical observation
  7. GRB051111: optical observaion
  8. GRB 051127: Swift-BAT detection of a possible burst
  9. GRB051117B: Swift XRT refined analysis
  10. GRB051111: Rc optical observations: correction
  11. GRB 051117A: Swift/UVOT Detection of an Afterglow: Correction
  12. GRB 051117A: Swift/UVOT Detection of an Afterglow
  13. GRB051111: Suzaku WAM observation of the prompt emission
  14. GRB051111: Rc optical observations
  15. GRB051008: Suzaku WAM observation of the prompt emission
  16. GRB 051109B: GAO 150cm telescope Optical limit
  17. GRB 051021 Optical Observations
  18. GRB 051117B: MARGE Optical Limits
  19. GRB 051117A and B: Radio Observations
  20. GRB 051117B: R and I observations of possible host galaxy
  21. GRB 051117b: NIR observations
  22. GRB 051117A: Refined analysis of the Swift-BAT burst
  23. GRB 051117B: Refined analysis of the Swift-BAT burst
  24. GRB051117A : XRT refined analysis
  25. GRB 051117B,optical observation
  26. GRB 051117B: Lulin R and I band observation
  27. GRB 051117B: Optical observations
  28. GRB 051117B: ROTSE-III Optical Limits
  29. GRB051117B: Swift XRT position
  30. GRB 051117B: Swift detection of a burst
  31. GRB 051117: Swift detection of a bright burst
  32. GRB 051028 Optical Observations
  33. GRB 051109B : Nainital upper limits
  34. GRB 051114: Radio Observations
  35. GRB050925: analysis of the XMM-Newton observation
  36. GRB051109A optical observations
  37. GRB 051114: Swift-BAT detection of a short burst
  38. GRB 051111: Further spectroscopic analysis
  39. GRB 051111: Radio afterglow
  40. GRB 051113: Swift-BAT detection of a burst
  41. GRB 051111: AEOS optical observations
  42. GRB051103: Radio Observations
  43. GRB 051109A Milagro GeV/TeV Observations
  44. GRB/SGR 050925: XMM-Newton ToO observation
  45. GRB051111: Swift/UVOT Observations
  46. GRB 051111A : R-band temporal decay index based on Lulin
  47. GRB051111: XRT preliminary analysis
  48. GRB 051111: Swift-BAT refined analysis
  49. GRB 051109A Optical Observations
  50. GRB 051111A : Lulin BVRI multi band afterglow observation
  51. GRB051111a: SARA Observations
  52. GRB 051111a: IR photometry
  53. GRB 051111: Keck HIRES redshift
  54. GRB 051111A: KAIT optical observations
  55. GRB051111: Super-LOTIS Early Detection
  56. GRB 051111: ROTSE-III Analysis of Prompt Counterpart
  57. Faulkes Telescope R-band detection of GRB051111
  58. GRB 051103 Milagro GeV/TeV Observations
  59. GRB051111: Swift-BAT detection of a bright burst
  60. GRB 051111A: ROTSE-III Detection of Possible Counterpart
  61. GRB 051008 Tautenburg Supernova Search
  62. GRB 051109B. Radio Observations
  63. GRB 051109A
  64. GRB051109A - radio observations
  65. GRB 051109A: KAIT optical observations
  66. Konus-Wind observation of GRB 051109A
  67. GRB 051109A: Swift-UVOT Observations
  68. IPN triangulation and Konus spectrum of the short/soft GRB051107 (large
  69. GRB051109B: no UVOT source detected
  70. GRB051109B: XRT refined analysis
  71. GRB 051109B : Lulin Optical Observations
  72. GRB051109A: further steepening in the X-ray light curve
  73. GRB051109A: XRT refined analysis
  74. GRB 051109B: Super-LOTIS Observations
  75. GRB 051109B Kiso optical follow-up observation
  76. GRB051105B: REM Optical observation
  77. GRB 051109B: Swift detection of a burst
  78. GRB 051109: HET Optical Spectrum and Absorption Redshift
  79. GRB 051109: PROMPT Detections
  80. GRB 051109: Rc and Ic observations
  81. GRB051109: Early Super-LOTIS Detection
  82. GRB 051109: Swift-BAT refined analysis
  83. GRB 051109a: IR Photometry and Astrometry
  84. GRB 051109a: MDM Observations
  85. GRB 051109A: ROTSE-III Decline rate for Optical Counterpart
  86. GRB051109: Swift detection of a burst
  87. GRB 051109a: IR Detections
  88. GRB 051109: ROTSE-III Detection of Possible Counterpart
  89. GRB051105B: Swift/XRT upper limit
  90. GRB051105B: Swift/UVOT upper limit
  91. GRB051103: optical observations
  92. GRB 051103, optical observations
  93. GRB051103: MASTER: OT limit and host galaxy candidates
  94. GRB051028: Swift-XRT refined analysis
  95. GRB 051105a, observation from Naini Tal and OSN
  96. GRB 051105A, 2nd epoch optical observations
  97. GRB 051105a: MDM Observations
  98. GRB 051105A: TNG optical observations
  99. GRB051105A: Swift/UVOT Observations
  100. GRB 051105A, radio observations

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