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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"

24472 results found.

  1. GRB 110726A: ROTSE-III refined analysis, fast decay in early phase
  2. GRB110726A: MITSuME Ishigakijima Optical Observation
  3. GRB 110726A: Swift-BAT refined analysis
  4. GRB 110726A: Liverpool Telescope observations
  5. GRB 110726: ROTSE-III Detection of Optical Counterpart
  6. Konus-Wind observation of GRB 110721A
  7. GRB 110719A / SMA 345 GHz upper limits
  8. GRB 110721A: Fermi-LAT detection
  9. GRB 110721A: Fermi GBM detection
  10. Recent GCN/Swift-BAT Slew Burst Position notices are due to playback debugging
  11. GRB110715A: spectral lag analysis
  12. GRB 110715A : Suzaku WAM observation of the prompt emission
  13. GRB 110719A: z-band upper limit
  14. Swift J1822.3-1606 : Fermi GBM observation
  15. GRB 110719A: Swift-BAT refined analysis
  16. GRB 110715A optical observations
  17. GRB 110709B : Suzaku WAM observation of the prompt emission
  18. Konus-Wind observation of GRB 110715A
  19. GRB110715A: VLT redshift
  20. GRB 110715A: Swift-BAT refined analysis
  21. Swift J1822.3-1606: A Probable New SGR in Ground Analysis of BAT Data
  22. GRB 110709B: Swift/UVOT Observations
  23. GRB 110709A / EVLA upper limits
  24. Konus-Wind observation of GRB 110708B
  25. GRB 110709A: Suzaku WAM observation of the prompt emission
  26. GRB 110709B: Submm observations from APEX
  27. Swift Trigger 457076: a possible GRB
  28. GRB 110709A: Konkoly observations
  29. GRB 110708A: Konkoly observations
  30. GRB 110709B BAT refined analysis
  31. GRB 110709B: burst detection from Swift-BAT slew data
  32. GRB 110709B: Swift-XRT refined Analysis
  33. GRB 110709A: Swift-XRT refined Analysis
  34. GRB 110709B: Swift/UVOT Detection of Possible Optical Flaring
  35. GRB110709A: MITSuME Ishigakijima Optical upper limits
  36. Konus-Wind observation of GRB 110709A
  37. Konus-Wind observation of GRB 110709B
  38. GRB 110709A: Fermi GBM observation
  39. GRB 110709B: Preliminary Swift-BAT refined analysis
  40. GRB 110709B: GROND Detection of an Afterglow Candidate
  41. GRB 110709A: Swift-BAT refined analysis
  42. GRB 110709A : Xinglong TNT upper limit
  43. GRB 110709B: Swift detection of renewed activity at T+11 minutes.
  44. GRB 110709A: MASTER-NET optical observations
  45. GRB 110708A: Liverpool Telescope observations
  46. GRB 110708A: Lick observations
  47. GRB 110705A: Suzaku WAM observation of the prompt emission
  48. GRB 110708A: a long GRB detected by INTEGRAL
  49. Konus-Wind observation of GRB 110705A
  50. GRB 110705A: Fermi GBM detection
  51. Swift Trigger 456659 is probably not astrophysical
  52. Swift-BAT trigger 456532 is not astrophysical
  53. SGR 1E 1841-045: Swift-BAT refined analysis
  54. GRB 110625A: Suzaku WAM observation of the prompt emission
  55. GRB 110625A: Fermi GBM and LAT observations
  56. GRB 110625A: Konkoly observations
  57. Konus-Wind observation of GRB 110625A
  58. GRB 110625A: Swift-XRT refined Analysis
  59. GRB 110625A: Swift-BAT refined analysis
  60. Swift J185003.2-005627: NIR Observation
  61. GRB 110625A: ROTSE-III Optical Limits
  62. Swift J185003.2-005627: Swift-BAT refined analysis
  63. Swift J185003.2-005627: Swift detection of a burst from a new Galactic transient
  64. SGR 1E 1841-045: Swift-BAT refined analysis
  65. Konus-Wind observation of GRB 110618A
  66. IPN triangulation of GRB110618A (long duration, extremely intense)
  67. GRB 110604A: Suzaku WAM observation of the prompt emission
  68. GRB 110610A: Suzaku WAM observation of the prompt emission
  69. GRB 110610A: Fermi GBM detection
  70. GRB 110610A: Swift-BAT refined analysis
  71. GRB 110610A: MASTER-NET optical observations
  72. Konus-Wind observation of GRB 110604A
  73. GRB 110530A: optical observations in Mondy observatory
  74. GRB 110529A: Suzaku WAM observation of the prompt emission
  75. GRB 110530A: Xinglong TNT observation
  76. GRB110530A: MITSuME Okayama Optical Observation
  77. GRB 110530A: optical observations at Mt. Terskol
  78. GRB 110530A: MASTER OT observations
  79. GRB 110530A: Swift-BAT refined analysis
  80. GRB 110530A: MITSuME Akeno Optical Observation
  81. GRB 110529A: Fermi GBM detection
  82. GRB 110530A: Swift detection of a burst with an optical afterglow
  83. Konus-Wind observation of GRB 110529A
  84. LAT Observations of GRB110529A
  85. GRB 110521A - NOT optical observation
  86. GRB 110521A: Swift-BAT refined analysis
  87. GRB 110521A: MASTER synchronous and early optical observations limit
  88. GRB 110520A: Swift-BAT refined analysis
  89. GRB 110520A: WHT IR observations
  90. GRB 110520A - NOT optical observation
  91. GRB 110520A: Skynet/DAO optical observations
  92. GRB 110520A: Liverpool Telescope Observations
  93. GRB 110520A: MASTER-NET optical observations
  94. Konus-Wind observation of GRB 110518A
  95. IPN localization of bright GRB 110518A
  96. GRB 110519A, Swift-BAT refined analysis
  97. GRB 110519A: Swift detection of a burst
  98. GRB 110426A: Fermi GBM detection
  99. GRB 110428A: Fermi-GBM observation
  100. GRB 110503A: Jet Break seen from TLS

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