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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"

37358 results found.

  1. GRB 140221A: Results from Swift XRT tiled observations
  2. GRB 140219A: Xuyi and Nanshan upper limits
  3. GRB 140219A: results from Swift XRT and UVOT tiled observations
  4. GRB 140219A: MASTER before and after GRB observational arguments of the exceptionally Dark GRB
  5. Konus-Wind observation of exceptionally bright GRB 140219A
  6. GRB 140221A Tiled Swift observations
  7. GRB 140221A: MAXI/GSC detection
  8. GRB 140219A: Fermi-LAT detection of a burst
  9. GRB 140219A: Fermi GBM Detection
  10. GRB 140219A Tiled Swift observations
  11. IPN Triangulation of extremely bright long GRB 140219A
  12. GRB 140213A: Continued Skynet R-COP/PROMPT Observations of the Optical Afterglow
  13. GRB 140215A: RAPTOR Observations During Gamma-Ray Emitting Interval
  14. Fermi GBM trigger 140214230 is not a GRB
  15. GRB 140213A: Continued Skynet R-COP/PROMPT Detections of a Rebrightening Optical Afterglow
  16. GRB 140215A: Continued Skynet PROMPT Observations of the Optical Afterglow
  17. GRB 140215A: WSRT radio observation
  18. GRB 140211A: Khureltogot optical upper limits
  19. GRB 140215A: Continued RATIR Optical and NIR Observations
  20. Konus-Wind observation of GRB 140213A
  21. Konus-Wind observation of GRB 140215A
  22. GRB 140215A: Swift/UVOT Detection
  23. GRB 140211A: Swift-XRT and UVOT observations
  24. GRB 140215A: Continued RATIR Optical and NIR Observations
  25. GRB 140215A: MITSuME Okayama Optical Observation
  26. GRB 140215A: Swift-BAT refined analysis
  27. GRB 140215A: ISON-NM optical observations
  28. GRB 140215A: Swift-XRT refined Analysis
  29. GRB 140215A: P60 observations
  30. GRB 140215A: T24 optical observations
  31. GRB 140215A: Enhanced Swift-XRT position
  32. GRB 140215A: RATIR Optical and NIR Observations
  33. GRB140215A: Skynet PROMPT Optical Observations
  34. GRB 140215A: KAIT Optical Detection
  35. GRB140215A: Prompt Observations with Discovery Channel Telescope
  36. GRB 140215A: Swift detection of a burst with optical counterpart
  37. GRB 140213A: Swift-BAT refined analysis
  38. GRB140206A: Discovery Channel Telescope Optical Detection
  39. GRB 140213A: Swift/UVOT Observations
  40. GRB 140213A: Fermi GBM Detection
  41. GRB 140213A: Swift-XRT refined Analysis
  42. GRB140213A: VLT/X-shooter redshift
  43. GRB 140213A: Enhanced Swift-XRT position
  44. GRB 140213A: GROND Detection of the Optical/NIR Afterglow
  45. GRB 140213A: Skynet R-COP Detection of Optical Afterglow
  46. GRB 140213A: Swift-XRT observations
  47. GRB 140213A: Swift/UVOT Detection
  48. GRB 140213A: Swift detection of a burst
  49. GRB140211A : Xinglong TNT upper limit
  50. Trigger 586482: Swift detection of GROJ1744-28
  51. Correction to GCN 18521 "GRB140209A: Swift/UVOT observations"
  52. GRB 140211A: Swift-BAT refined analysis
  53. GRB 140209A: Swift-XRT observations
  54. Konus-Wind observation of GRB 140209A
  55. GRB 140211A: MITSuME Okayama upper limits
  56. GRB 140211A: Swift detection of a burst
  57. GRB 140209A: Early RAPTOR Optical Detection
  58. GRB 140209A: Swift-BAT Spectral lag analysis
  59. GRB 140206A: Bassano Bresciano Observatory optical upper limit
  60. GRB 140209A, Swift-BAT refined analysis
  61. GRB 140209A: Fermi GBM observation
  62. GRB 140209A: optical observations
  63. GRB 140209A: P60 optical afterglow detection
  64. GRB 140209A: Swift detection of a burst
  65. GRB 140206A: Mondy optical observations
  66. GRB 140206A: Liverpool Telescope optical afterglow observations
  67. GRB 140206A, Swift-BAT refined analysis
  68. Konus-Wind observation of GRB 140206B
  69. GRB 140206A: MITSuME Akeno detection of the optical counterpart
  70. GRB 140206A: TNG redshift confirmation
  71. GRB 140206A: Optical Observations via Virtual Telescope
  72. GRB 140206A: NOT redshift
  73. GRB 140206A: TNG optical observations
  74. GRB 140206A: Swift-XRT refined Analysis
  75. GRB 140206A: T100 observations
  76. GRB 140206A: Fermi GBM detection
  77. GRB 140206A: Swift/UVOT Detection
  78. GRB 140206A: theoretical prediction of redshift and of supernova occurrence
  79. GRB 140206A: Enhanced Swift-XRT position
  80. GRB 140206A: ISON-Ussuriysk optical observations
  81. GRB 140206B: Fermi-LAT detection
  82. GRB 140206B: Fermi GBM detection
  83. GRB 140206A: Nanshan optical observations
  84. GRB 140206A: MASTER OT detection
  85. GRB 140206A: Swift/UVOT optical detection
  86. GRB140206A: a long GRB detected by INTEGRAL
  87. GRB 140206A: Swift detection of a burst
  88. GRB 140129A: 5 GHz VLA observations
  89. GRB 140129A: Continued RATIR Optical and NIR Observations
  90. GRB 140129A: Khureltogot optical limit
  91. GRB 140129B: Swift/UVOT Detection
  92. GRB 140129A: Continued RATIR Optical and NIR Observations
  93. GRB 140102A: MITSuME Akeno Optical observation
  94. GRB 140129B: Swift-XRT refined Analysis
  95. GRB 140129B: MASTER OT early light curve
  96. GRB 140129A: CARMA early observations
  97. GRB 140129B, Swift-BAT refined analysis (probably not a short burst)
  98. GRB 140129A: P200 spectroscopy
  99. GRB140129A: RAPTOR Observations of the Early Afterglow
  100. GRB 140129A: MITSuME Okayama upper limits

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