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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"

39457 results found.

  1. GRB 130605A: Continued Skynet/PROMPT observations
  2. GRB 130605A: TAROT La Silla observatory optical decay
  3. GRB 130605A: Skynet/PROMPT detection of a fading afterglow
  4. GRB 130605A: TAROT La Silla observatory optical detection of the afterglow
  5. GRB 130605A: GROND afterglow candidate
  6. GRB 130605A: Swift detection of a burst
  7. GRB 130603B: rest-frame energetics in gamma-rays
  8. Konus-Wind observation of GRB 130603B
  9. GRB 130603B: MASTER-Net early observations and optical sloap limit
  10. GRB 130603B: AMI-LA 15GHz observations
  11. GRB 130604A: Swift/UVOT Upper Limits
  12. Swift Trigger 557466 is probably not real.
  13. GRB 130604A: Swift-XRT refined Analysis
  14. GRB 130604B: Fermi GBM detection
  15. GRB 130603B: RATIR Optical and NIR Observations
  16. GRB 130604A: Enhanced Swift-XRT position
  17. GRB 130604A: Gemini North Spectroscopy
  18. GRB 130603B: P60 Observations
  19. GRB 130604A: MITSuME Okayama upper limits
  20. GRB130603B: Swift/UVOT detection
  21. GRB 130604A: further ISON-NM optical observation
  22. GRB 130603B: VLT/X-shooter redshift confirmation
  23. GRB 130604A: ISON-NM optical upper limit
  24. GRB 130603A: MITSuME Akeno Optical observation
  25. GRB 130604A: KAIT optical upper limit
  26. GRB 130604A: P60 optical afterglow candidate
  27. GRB 130604A: Swift detection of a burst
  28. GRB 130603B: 5.8 GHz VLA detection
  29. GRB 130603A: SON optical observations
  30. GRB 130603B: Swift-XRT refined Analysis
  31. GRB 130603B: Gemini Observations
  32. GRB 130603B: optical follow-up and independent GTC redshift determination and afterglow spectrum
  33. GRB 130603B: Swift-BAT Spectral lag analysis
  34. GRB 130603B: Magellan redshift confirmation
  35. GRB 130603B: Short GRB afterglow spectrum from GTC
  36. GRB 130603B: Afterglow detection from NOT
  37. GRB 130603B: WHT optical afterglow candidate
  38. GRB 130603B: Swift-BAT refined analysis
  39. GRB 130603A: Swift-XRT refined Analysis
  40. GRB 130603B: Enhanced Swift-XRT position
  41. Swift/UVOT observations of GRB130603A
  42. GRB 130603A: Enhanced Swift-XRT position
  43. GRB 130603A: Swift-BAT refined analysis
  44. GRB 130603B: Swift detection of a bright short burst
  45. GRB 130603A: MITSuME Okayama Optical Observation
  46. GRB 130603A: Swift-XRT observations
  47. GRB 130603A: Swift-XRT and Swift-UVOT detections
  48. GRB 130603A: Swift detection of a burst
  49. GRB 130529A: GROND upper limits
  50. GRB 130528A: Fermi GBM detection
  51. GRB 130529A: Swift/UVOT Upper Limits
  52. GRB 130527A: Suzaku WAM observation of the prompt emission
  53. GRB 130529A: Swift-BAT refined analysis
  54. GRB 130518A: Suzaku WAM observation of the prompt emission
  55. GRB 130529A: Swift-XRT refined Analysis
  56. GRB 130529A: Enhanced Swift-XRT position
  57. Konus-Wind observation of GRB 130528A
  58. GRB 130528A: Swift/UVOT Upper Limits
  59. Konus-Wind observation of GRB 130527A
  60. GRB 130529A: Prompt enhanced Swift-XRT position
  61. GRB 130528A: Swift-BAT refined analysis
  62. GRB 130529A: Swift detection of a burst
  63. GRB 130528A: Swift-XRT refined Analysis
  64. GRB 130527A: Swift/UVOT Upper Limits
  65. GRB 130528A: Enhanced Swift-XRT position
  66. GRB 130521A: Skynet/PROMPT detection of an extremely red afterglow
  67. GRB 130528A: optical upper limit
  68. GRB 130528A: Swift detection of a burst
  69. GRB 130527A: NOT optical counterpart
  70. GRB 130527A: RATIR Optical and NIR Observations
  71. GRB 130527A: Swift-BAT refined analysis
  72. GRB 130527A: Swift-XRT refined Analysis
  73. GRB 130527A: BOOTES-2 & 3.5m CAHA opt/nIR observations
  74. GRB 130527A: Enhanced Swift-XRT position
  75. GRB 130527A: Prompt enhanced Swift-XRT position
  76. GRB 130527A: Swift detection of a bright burst
  77. GRB 130514A: Konus-Wind and Swift/BAT joint spectral analysis
  78. Swift Trigger 556533 is not an astrophysical event
  79. GRB 130521B: Suzaku WAM observation of the prompt emission
  80. Swift Trigger 556533 is probably not an astrophysical event
  81. Konus-Wind observation of GRB 130521B
  82. GRB 130521A: Skynet/PROMPT observations
  83. IPN Triangulation of GRB 130521B
  84. GRB 130514B: Further Swift-XRT Observations
  85. GRB 130518B, Swift-BAT refined analysis
  86. GRB 130521A, Swift-BAT refined analysis
  87. GRB 130521A: TAROT La Silla observatory optical observations
  88. GRB 130521A: Swift detection of a burst
  89. Swift XRT observation of GRB 130518B
  90. GRB 130518A: mm detection at PdBI
  91. GRB 130515A: Suzaku WAM observation of the prompt emission
  92. GRB 130518A: Gemini Redshift confirmation
  93. GRB 130427A / SN 2013cq: Hubble Space Telescope Observations
  94. GRB 130518A: 10.4m GTC/OSIRIS redshift
  95. GRB 130518A: Continued RATIR Optical Observations - Fading
  96. Correction to GCN Circular 14682 (GRB 130518B)
  97. GRB 130518B found in ground analysis of Swift-BAT data
  98. GRB 130518A: Confirmation of the X-ray afterglow.
  99. GRB 130518A: P60 Afterglow Observations
  100. GRB 130518A: RATIR Optical and NIR Observations

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