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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"

36278 results found.

  1. GRB 080714: GROND confirmation of the optical/NIR afterglow
  2. Konus-Wind observation of GRB 080714
  3. GRB 080714: Swift/UVOT Detection of an Optical Afterglow
  4. GRB 080714: Swift-XRT refined analysis
  5. GRB 080714: Enhanced Swift-XRT position
  6. GRB 080714: Swift-BAT refined analysis
  7. GRB 080714: Swift detection of a burst
  8. GRB 080702A: optical upper limit
  9. GRB 080603A: CrAO optical observations
  10. GRB 080603B: optical observations in MAO
  11. GRB 080603B: optical observations in CrAO
  12. GRB 080710: Optical observation with MITSuME Okayama
  13. GRB 080710: TLS observations, steepening afterglow decay
  14. GRB 080702B: Swift XRT confirmation of the afterglow
  15. GRB 080710: Lick IR detection
  16. GRB 080710, Swift-BAT refined analysis
  17. GRB 0800707: optical observations
  18. GRB 080710: Rapid PROMPT Observations
  19. GRB 080710: Swift-XRT refined analysis
  20. GRB080710: Swift/UVOT observations
  21. GRB 080710: Enhanced Swift-XRT position
  22. GRB 080710: Faulkes Telescope North observations
  23. GRB 080710: Gemini spectroscopy and probable redshift
  24. UVOT white band observations of GRB080710
  25. GRB 080710: REM afterglow confirmation & brightening
  26. GRB 080710: KAIT OA candidate
  27. GRB 080710: Swift XRT position
  28. GRB 080710: Swift detection of a burst
  29. GRB 080707: possible break in the X-rays
  30. New Swift-XRT GRB products available online.
  31. GRB 080707: GROND Confirmation of the Optical Afterglow
  32. UVOT observations of GRB080707
  33. GRB 080707, Swift-BAT refined analysis
  34. GRB 080707: Swift XRT refined analysis
  35. GRB 080707: Enhanced Swift-XRT position
  36. GRB 080707: VLT redshift
  37. GRB 080707: GROND Detection of the Optical Afterglow Candidate
  38. GRB 080707: Swift detection of a burst
  39. Refined analysis of Swift Trigger 316063, is IGR J08408-4503
  40. Trigger 316063: Swift detection of a transient
  41. GRB 080703: GROND Upper Limits
  42. GRB 080702B: GROND Upper Limits
  43. GRB 080703: Swift-XRT refined analysis
  44. GRB 080703: UVOT Follow-Up Observation
  45. GRB 080703: VLT observations of the afterglow
  46. GRB 080703: Enhanced Swift-XRT position
  47. GRB 080703, Swift-BAT refined analysis
  48. GRB 080702B Swift-BAT refined analysis
  49. GRB 080703: Swift detection of a burst with optical afterglow
  50. GRB 080703A: ROTSE-III Detection of Optical Counterpart
  51. No radio detection from the short GRB 080702A
  52. GRB 080702b: LCO optical observations
  53. GRB 080702B: Swift XRT and UVOT observations
  54. GRB 080625: Suzaku WAM observation of the prompt emission
  55. GRB 080702A: MITSuME Akeno optical upper limits
  56. GRB 080701A: Early RAPTOR optical limits
  57. GRB 080702A, Swift-BAT refined analysis
  58. GRB 080702A: Swift-XRT Team refined analysis
  59. GRB 080702B : Burst detected in BAT during Swift slew
  60. GRB 080702A: Enhanced Swift-XRT position
  61. Swift Trigger 315630: Probably not a GRB
  62. GRB 080702: Swift detection of a short burst
  63. GRB 080701: Swift-XRT refined analysis
  64. GRB 080701A, VATT optical upper limit
  65. TLS I-Band Observation of GRB 080701A
  66. GRB 080701A: Swift/UVOT Upper Limits
  67. GRB 080701A: Early Super-LOTIS Observations
  68. GRB 080701: Enhanced Swift-XRT position
  69. GRB 080701A, Swift-BAT refined analysis
  70. GRB 080701: Swift-XRT Prompt Analysis
  71. GRB 080701: Swift detection of a burst
  72. GRB 080623: Suzaku WAM observation of the prompt emission
  73. GRB 080625: Swift/UVOT Follow-Up Observations
  74. GRB 080625: Further observations from OSN
  75. GRB 080625:Swift-XRT detection of the afterglow
  76. GRB 080625: Swift/UVOT Detection of an Optical Afterglow
  77. GRB 080625: Observations at OSN
  78. GRB 080625: Gamma Ray Burst Localization by SuperAGILE
  79. GRB 080623: GROND upper limits
  80. GRB080623: Swift UVOT followup observations
  81. GRB 080623: Swift-XRT refined analysis
  82. GRB 080623, Swift-BAT refined analysis
  83. GRB 080623: Enhanced Swift-XRT position
  84. GRB 080623: TAROT La Silla observatory optical observations
  85. GRB 080623: Swift/UVOT Non-Detection of an Optical Afterglow
  86. GRB 080623: Swift XRT prompt analysis
  87. GRB 080623: Swift detection of a burst
  88. Swift trigger 314975 is not a GRB
  89. GRB080607: optical observation
  90. GRB 080603b: optical observation
  91. GRB 070809: Putative host galaxy and redshift
  92. VLA upper limit on INTEGRAL burst GRB 080613A
  93. GRB 0800603A: optical observation
  94. GRB080613B: MITSuME upper limits
  95. GRB080613A: Optical upper limits with Okayama MITSuME telescope
  96. Konus-Wind observation of GRB 080613B
  97. GRB 080603A: optical observations on June 04
  98. GRB 080613A: Swift-XRT detection of the afterglow
  99. GRB080613A: Swift/UVOT Upper Limits
  100. GRB 080613A: GROND Confirmation of the Afterglow Candidate

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