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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').
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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"

19289 results found.

  1. GRB 060210: Jet Break in the XRT light curve
  2. GRB 060516: Refined analysis of the Swift-BAT burst
  3. GRB 060505 BAT refined analysis
  4. GRB 060515 BAT refined analysis
  5. GRB 060512: TAROT optical observation
  6. GRB 060515: Swift/XRT Team refined analysis
  7. GRB060512: Swift XRT Team refined analysis
  8. GRB 060512: Swift-BAT Refined Analysis
  9. GRB 060505 - OT candidate + galaxy spectrum
  10. GRB060512 - SDSS Pre-Burst Observations
  11. GRB 060512: Swift detection of a burst with an optical afterglow
  12. Konus-Wind observation of GRB 060510A
  13. GRB 060428a, SMARTS optical/IR afterglow detection
  14. GRB060510B: Swift XRT refined analysis
  15. GRB 060510A: Refined analysis of the Swift-BAT burst
  16. GRB 060510B: Swift-BAT Refined Analysis
  17. GRB060510A: XRT refined analysis
  18. GRB 060510: Swift detection of a burst with optical transient
  19. GRB060502B: improvement in the XRT afterglow position
  20. GRB 060507: Final Refined analysis of the Swift-BAT burst
  21. GRB 060507: Swift-BAT Refined Analysis
  22. GRB 060507: Swift XRT Team Refined Analysis
  23. GRB 060507: MDM Optical Upper Limit
  24. GRB 060507: Swift detection of a burst
  25. GRB 060429: Suzaku WAM observation
  26. GRB060425: new MASTER survey method
  27. GRB 060306: Further Analysis of SOAR and APO NIR Observations
  28. GRB 060505: Swift-BAT detection of a weak burst
  29. GRB 060428B: spectroscopy
  30. GRB 060502B: MDM Optical Observation
  31. GRB 060502B: Refined analysis of the Swift-BAT short burst
  32. GRB060502B: Swift XRT Team refined analysis
  33. GRB060502B: correction to XRT position
  34. GRB060502: Swift-XRT refined analysis
  35. GRB 060502: Swift-BAT refined analysis
  36. GRB 060501: Refined analysis of the Swift-BAT burst
  37. GRB 060501: ROTSE-III Optical Limits
  38. GRB 060428B: MDM Observations
  39. GRB060428B: Swift XRT Team refined analysis
  40. GRB 060427B: IPN localization of a short hard burst
  41. GRB 060428B: Refined analysis of the Swift-BAT burst
  42. GRB 060428A: Refined analysis of the Swift-BAT burst
  43. GRB060428A: Swift XRT Team refined analysis
  44. GRB 060427: Refined analysis of the Swift-BAT burst
  45. GRB060427: Swift XRT Team refined analysis
  46. GRB060418: Swift XRT Team Further Refined Analysis
  47. GRB060425:MASTER survey observations
  48. GRB060418: Further Analysis of MIKE Spectroscopy
  49. GRB 060424: Refined analysis of the Swift-BAT burst
  50. GRB 060421: TTT Observations
  51. Swift-BAT detection of Mrk 421
  52. GRB060421: Swift/UVOT observations
  53. GRB 060421: Swift-BAT Refined Analysis
  54. GRB 060421: Swift-XRT refined analysis
  55. GRB 060418: prediction of t_break
  56. Erratum of GCN 4983 for GRB 060418 IR follow-up
  57. GRB 060418 : IR afterglow observations
  58. GRB060418, BVRcIc field calibration
  59. GRB060418: Optical Observations
  60. GRB 060418: Refined Analysis of the Swift-BAT burst
  61. GRB 060418, SMARTS continuing afterglow observations
  62. GRB 060418, SMARTS optical/IR afterglow observations
  63. GRB 060418: Swift detection of a burst with bright x-ray and optical afterglow
  64. GRB 060413: Refined analysis of the Swift-BAT burst
  65. GRB060403: Optical Limit
  66. GRB060403: XRT refined analysis
  67. SGR 1900+14: BAT observations
  68. GRB 060403: Refined analysis of the Swift-BAT burst
  69. Konus-Wind observation of the recent SGR 1900+14 activity. Will
  70. Swift XRT observations of the HETE transient H4043
  71. SGR 1900+14: bright burst detected by Konus-Wind on March 28
  72. INTEGRAL and XMM ToO observations of SGR1900+14
  73. SGR 1900+14: Swift-BAT detection of a bright outburst
  74. GRB 060323 : WIDGET simultaneous optical observations
  75. GRB060218, optical observations
  76. GRB 060323: Optical Observations
  77. GRB 060323: Tautenburg OT candidate retraction
  78. GRB 060323: Refined analysis of the Swift-BAT burst
  79. GRB 060323: BVRI observations at Tautenburg, aftreglow candidate
  80. GRB 060322: Refined analysis of the Swift-BAT burst
  81. GRB060323 - SDSS Pre-Burst Observations
  82. GRB 060323: Swift detection of a burst with a possible optical afterglow
  83. GRB 060322: Swift-BAT detection of a 200-sec burst
  84. GRB 060319: Swift-BAT refined analysis
  85. GRB060319 - SDSS Pre-burst Observations
  86. GRB 060313: Further analysis of the Swift-BAT bright short hard burst
  87. GRB 060313: Refined analysis of the Swift-BAT bright short hard burst
  88. GRB 060313, SMARTS optical counterpart?
  89. GRB060218: SARA Observations of SN2006aj
  90. GRB 060312: Refined analysis of the Swift-BAT burst
  91. GRB 060218/SN 2006aj, high resolution spectra
  92. GRB060306: APO Ks-band Imaging Observations
  93. GRB060219: Liverpool Telescope observations
  94. GRB060218: analysis of the XMM-Newton observation
  95. GRB 060306: Swift-BAT refined analysis
  96. GRB 060306: Swift-XRT team refined analysis
  97. GRB 060306: Swift detection of a bright burst
  98. GRB060218: Ep,i - Eiso correlation
  99. GRB060218: R-band CCD photmetry
  100. GRB200618: optical polarimetry and photometry

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