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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.

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19666 results found.

  1. GRB 090621A: Enhanced Swift-XRT position
  2. GRB 090621B: GRT Optical Observation
  3. GRB 090621A: GRT Optical Observation
  4. PAIRITEL observations of GRB 090618
  5. GRB 090621B: Fermi GBM detection
  6. GRB 090621B: I-band observations from 1.23m CAHA
  7. GRB 090621: Fermi GBM observation
  8. GRB 090621B: Swift/UVOT Upper Limits
  9. GRB 090621B: Swift-BAT refined analysis
  10. GRB 090621B: Swift-XRT refined analysis
  11. GRB 090621B: RTT150 optical observations
  12. GRB 090618: RTT150 optical observations
  13. GRB 090621A: Swift-BAT refined analysis
  14. GRB 090621B: Swift detection of a short hard burst
  15. GRB 090621: Swift/UVOT Upper Limits
  16. GRB 090621: Swift-XRT Team refined analysis
  17. GRB 090621: Swift detection of a burst
  18. GRB 090618: ZTSh optical observations
  19. GRB090618, underlying supernova search
  20. GRB 090618: Fermi GBM observation
  21. GRB 090618, Swift-BAT refined spectral analysis
  22. GRB090618 - Continued optical monitoring and light curve break
  23. GRB 090618: Swift-BAT refined analysis
  24. GRB090618: Swift-XRT team refined analysis
  25. GRB090618: Swift/UVOT bright afterglow detection
  26. Swift XRT observations of GRB 090531A
  27. GRB 090618: AGILE observations
  28. GRB 090618: Enhanced Swift-XRT position
  29. GRB 090618 Faulkes Telescope North observations
  30. GRB 090618: ROTSE-III Detection of Optical Counterpart
  31. GRB090618: P60 Optical Afterglow
  32. GRB 090618: Swift detection of a bright burst with optical afterglow
  33. SGR 0418+5729 Fermi/GBM Detection of Pulsations
  34. RXTE Discovery of Pulsations from SGR 0418+5729
  35. GRB 090531B: Fermi GBM detection
  36. Discovery of a new soft gamma repeater source, SGR 0418+5729
  37. GRB 090607: XRT Team Refined Analysis
  38. GRB 090607: Swift/UVOT Upper Limits
  39. GRB 090607: Swift-BAT refined analysis of the SHB
  40. GRB 090607: Faulkes Telescope North observations
  41. GRB 090607: Swift detection of a burst
  42. Ignore GCN/Swift-BAT Lightcurve Notices for trigger 353567
  43. GRB 090530: RTT150 Optical Observation
  44. GRB 090529A: RTT150 Optical Observations
  45. GRB 090531B: GROND observation
  46. GRB 090530: Early RAPTOR Optical Observations
  47. GRB 090531B: Swift/BAT spectral lag results
  48. Corrections to GRB 090531B Swift/UVOT Upper Limits
  49. GRB 090531B, RIMOTS optical upper limits
  50. GRB 090531B: Swift/UVOT Upper Limits
  51. GRB 090530: GRT Optical Observation
  52. GRB 090531B: Swift-BAT refined analysis
  53. Initial Swift/UVOT observations of GRB 090531B
  54. GRB 090531B: Swift-XRT candidate afterglow position
  55. GRB 090531B: ROTSE-III Optical Limits
  56. GRB 090531B: Swift detection of a burst
  57. GRB 090531: Swift-BAT refined analysis
  58. GRB 090530: break in light curve
  59. GRB 090531: GROND upper limits
  60. GRB 090531: Swift detection of a burst
  61. GRB090530: Swift XRT refined analysis
  62. GRB090530: Swift/UVOT afterglow detection
  63. GRB 090529: Swift-XRT refined analysis
  64. GRB 090530: Enhanced Swift-XRT position
  65. GRB 090530: Swift-BAT refined analysis
  66. GRB 090530: PAIRITEL NIR Detections
  67. GRB 090530A: ROTSE-III Detection of Optical Counterpart
  68. GRB 090530: Swift detection of a burst with an optical counterpart
  69. GRB 090529: optical observations
  70. GRB 090529: TLS Afterglow Observations
  71. GRB090529: UVOT/Swift detection of a brightening optical afterglow
  72. GRB 090529: Swift-BAT refined analysis
  73. GRB 090529: Enhanced Swift-XRT position
  74. GRB 090529: Preliminary Swift/UVOT Upper Limit
  75. GRB 090529: Swift detection of a burst
  76. GRB 090520B: Fermi GBM detection
  77. GRB 090516A: Konus-Wind and Swift/BAT joint spectral analysis
  78. GRB 090518: Fermi GBM detection
  79. GRB 090520 Swift-BAT detection of a burst in ground analysis
  80. GRB 090423: Fermi GBM T90 follow-up analysis results
  81. GRB 090516: Fermi GBM observation
  82. GRB 090519: Swift-XRT refined analysis
  83. GRB 090519: GROND observation
  84. GRB 090519: Swift/UVOT Upper Limits
  85. GRB 090519, Swift-BAT refined analysis
  86. GRB 090519: Enhanced Swift-XRT position
  87. GRB 090519: FARO Chante Perdrix Observatory optical observations
  88. GRB 090519: TAROT Calern observatory optical observations
  89. GRB 090519: Swift detection of a burst
  90. GRB 090518: Swift/UVOT Upper Limits
  91. GRB 090518, Swift-BAT refined analysis
  92. GRB 090516, RIMOTS optical upper limits
  93. GRB090518 : Optical upper limit by MOA-II telescope
  94. GRB 090518: Swift-XRT refined analysis
  95. GRB 090518: Enhanced Swift-XRT position
  96. GRB 090518: Swift detection of a burst
  97. GRB 090515: Swift/BAT spectral lag results
  98. GRB 090516: Swift-BAT refined analysis
  99. GRB 090516: GROND OBSERVATIONS
  100. GRB 090516 - Zadko Telescope observations

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