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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.

Advanced Search Examples (click to copy):

subject:"Swift"
body:"GRB"
submitter:"Judith Racusin"

32578 results found.

  1. GRB080229: Possible optical afterglow
  2. UVOT analysis for GRB080229
  3. GRB 080229, Swift-BAT refined analysis
  4. GRB 080229: Faulkes Telescope South optical limit
  5. GRB 080229A: ROTSE-III Optical Limits
  6. Early optical shallow decay in GRB 071112C
  7. GRB080207: optical observations
  8. GRB080205: optical observations
  9. GRB080211: optical observations
  10. XRF 080109/SN2008D : GMRT upper limit at 1.28 GHz
  11. GRB 071010B : Early optical brightening detected by TAOS
  12. Swift-XRT improved positions, and new redshift limits.
  13. ESO optical and NIR observations of GRB 080218B
  14. GRB 080204: Suzaku WAM observation of the prompt emission
  15. GRB 080218B, Swift-BAT refined analysis
  16. GRB 080218B: Swift-XRT refined analysis
  17. Swift/UVOT observations of GRB080218B
  18. GRB 080218B: REM NIR early upper limits
  19. GRB 080212: Mount Abu NIR observations
  20. GRB 080218B: GROND upper limits
  21. GRB 080218b, SMARTS optical/IR limits
  22. GRB 080218A, Swift-BAT refined analysis
  23. GRB080218B: Watcher prompt limit
  24. GRB 080211: Suzaku WAM observation of the prompt emission
  25. Swift-XRT and UVOT observations of the IPN burst GRB 080211
  26. GRB 080212: VLT optical rapid decay
  27. GRB 080212: REM refined analysis
  28. Konus-Wind observation of GRB 080211
  29. VLA radio upper limit on GRB 080212
  30. Swift/UVOT refined analysis of GRB080212
  31. GRB 080212, Swift-BAT refined analysis
  32. GRB080212: Optical afterglow candidate observed by MITSuME Telescope
  33. GRB 080212: Gemini-South optical observations
  34. GRB 080212: GROND detects afterglow
  35. GRB 080212: REM NIR afterglow?
  36. GRB 080212: optical observations
  37. GRB 080212: Swift-XRT Team refined analysis
  38. GRB 080210: Keck photometry
  39. VLA non-detection of GRB 080210
  40. GRB 080207: VLT NIR early upper limits
  41. GRB 080210: Swift/UVOT Refined Analysis
  42. GRB 080207: optical observations.
  43. GRB 080210: Hobby-Eberly Telescope Absorption Spectroscopy
  44. GRB 080210, Swift-BAT refined analysis
  45. GRB 080210: Super-LOTIS observations
  46. GRB 080210: Swift-XRT Refined Analysis
  47. GRB 080210: VLT redshift
  48. GRB 080210: Rapid PROMPT Detections
  49. GRB 080210: GOND detection in all bands and redshift upper limit
  50. GRB 080207: GROND upper limits
  51. GRB 080205: GAO 150cm telescope Optical limit
  52. GRB 080207, Swift-BAT refined analysis
  53. GRB 080207: Optical limits from Gemini-South
  54. GRB 080205: RTT150 optical observations
  55. Swift detection of AX J1749.1-2639
  56. GRB 080207: Super-LOTIS observations
  57. GRB 080207, Swift-BAT refined analysis
  58. GRB080207: RTT150 Optical Observations
  59. GRB 080207: REM NIR observations
  60. GRB080207: Swift/UVOT refined analysis
  61. GRB 080207: Swift-XRT Refined Analysis
  62. Konus-Wind observation of GRB 080204
  63. GRB 080205 optical upper limit
  64. GRB 080205: MASTER optical observation
  65. GRB 080205: optical observation
  66. VLA radio upper limit on GRB 080205
  67. INT+WFC R-band observations of GRB 080205
  68. GRB 080205, Swift-BAT refined analysis
  69. GRB 080205: Swift XRT refined analysis
  70. GRB 080205: OA evolution from KAIT observations
  71. GRB 080205: Swift/UVOT observations
  72. Swift-BAT Trigger #302454, correction of GCN notice, update on AX J1749.1-2639
  73. GRB 080130: Swift-BAT refined analysis
  74. GRB 080130: further Swift XRT observations confirm fading source
  75. GRB 080129: Swift/UVOT Refined Upper Limits
  76. Swift/UVOT observations of GRB080130
  77. GRB 080130: REM NIR observations
  78. GRB 080130(?): Swift XRT observation
  79. GRB 080130?: Detection of a possible burst by BATSS
  80. GRB 080129: Optical observations from OSN
  81. GRB 080129: Swift-XRT refined analysis
  82. X-ray transient in NGC 2770: RTT150 optical observations
  83. GRB 080129: KAIT optical limits
  84. GRB 080123: Early afterglow detection with BATSS (BAT Slew Survey)
  85. GRB 080129, Swift-BAT refined analysis
  86. GRB 080129: Gemini-South photometry
  87. GRB 080129: GROND detection in all bands, and fading
  88. GRB 080129: GROND detection of the optical/NIR afterglow, and fading
  89. GRB 080129: Gemini-South Imaging Observations
  90. GRB 080129: Swift XRT position
  91. GRB 080129 (?): UVOT Upper Limits
  92. A new website of high-level data products for Swift GRBs
  93. GRB 080121: Upper limit on X-ray afterglow
  94. GRB 080123 : Suzaku WAM observation of the prompt emission
  95. Swift trigger(=301779) is not a GRB
  96. Transient 080109/SN 2008D: Spectroscopic Evolution
  97. Konus-Wind observation of GRB 080122
  98. GRB 080122 : Suzaku WAM observation of the prompt emission
  99. GRB 080121: Swift/UVOT upper limits
  100. SNe 2008D and 2007uy: Chandra Detections

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