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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"

37759 results found.

  1. GRB 110825A: Further Swift/XRT Observations
  2. GRB 110731A: SAO RAS and Terskol observations
  3. GRB 110906A(?): Burst detection (unconfirmed) from Swift-BAT slew data
  4. MAXI J1836-194 (originally GRB 110905A): Swift-BAT refined analysis
  5. GRB 110905A / X-ray transient MAXI J1836-194: TNT optical observation
  6. GRB 110905A: Potential BAT trigger on MAXI J1836-194
  7. GRB 110905A: KAIT observations
  8. GRB 110905A: Swift detection of a burst
  9. GRB 110903A: Fermi GBM observation
  10. GRB 110903A: Swift/UVOT Upper Limits
  11. GRB 110903A: Swift-XRT observations
  12. Konus-Wind observation of GRB 110903A
  13. GRB 110903A: a long GRB detected by INTEGRAL
  14. GRB 110820A: optical upper limit
  15. GRB110825A: Fermi GBM observation
  16. GRB 110825A: Suzaku WAM observation of the prompt emission
  17. GRB 110825A: GMG optical observation
  18. GRB110825A: ROTSE early time optical limit
  19. GRB 110827A, Swift-BAT refined analysis
  20. GRB 110825A: optical afterglow candidate
  21. GRB 110827A: Swift detection of a burst
  22. GRB 110825A: field inspection and possible host galaxy
  23. IPN triangulation of GRB110825A (very intense, long-duration)
  24. GRB 110820A, the review of the sky area in plate archives
  25. Fermi GBM trigger 110823.518 is not a GRB
  26. Konus-Wind observation of GRB 110820B
  27. GRB 110820A: MASTER-NET first hour observations
  28. IPN triangulation of GRB 110820B (very long duration, extremely intense)
  29. GRB 110820A: Swift/UVOT Upper Limits
  30. GRB 110820A: Position udpate + 2nd epoch data
  31. GRB 110820A: i-band finding chart + correction to 12295
  32. GRB 110820A: CQUEAN izY Observation
  33. GRB 110820A: Swift-XRT refined Analysis
  34. GRB110820A: MITSuME Ishigakijima Optical Upper Limits
  35. GRB 110820A: Swift-BAT refined analysis
  36. GRB 110820A: Enhanced Swift-XRT position
  37. GRB 110820A: CrAO optical upper limit
  38. GRB 110820A: MASTER-NET observations
  39. GRB 110820A: Swift detection of a burst
  40. GRB 110818A: Fermi GBM observation
  41. GRB 110818A: Swift/UVOT Upper Limits
  42. GRB 110818A: Enhanced Swift-XRT position
  43. GRB 110818A: Optical afterglow and redshift from VLT/X-shooter
  44. GRB 110818A: Swift-XRT refined Analysis
  45. GRB 110815A: Swift-XRT and UVOT refined Analysis
  46. GRB 110818A, Swift-BAT refined analysis
  47. GRB 110815A : Suzaku WAM observation of the prompt emission
  48. GRB 110818A: Swift detection of a burst
  49. Konus-Wind observation of GRB 110815A
  50. IPN triangulation of GRB110815A (long, intense)
  51. GRB 110801A: Konus-Wind and Swift/BAT joint spectral analysis
  52. GRB 110801A: optical observations at Mt. Terskol observatory
  53. GRB 110812A: SuperAGILE localization of a long GRB.
  54. Reprocessed enhanced Swift-XRT positions and GRB products: update
  55. SGR 1834.9-0846/ GRB 110807A, I-band observations
  56. Konus-Wind observation of GRB 110808B
  57. Konus-Wind observation of GRB 110808A
  58. IPN triangulation of GRB 110808B (short/hard/intense)
  59. A new photometric resource for GRB observers
  60. SGR 1834.9-0846/ GRB 110807A: archival IR observations
  61. Fermi Gamma-ray Burst Monitor trigger 110809.346 is not a GRB
  62. GRB 110808A: Swift/UVOT Detection
  63. Swift Trigger 458942 is probably not a burst
  64. GRB 110808A: Swift-BAT refined analysis
  65. GRB 110808A: Swift-XRT refined Analysis
  66. SGR J1834.9-0846: A Neutron Star in W41?
  67. Swift SGR 1834.9-0846: Swift-BAT refined analysis
  68. GRB 110808A: VLT/X-shooter spectroscopy
  69. GRB 110808A: Enhanced Swift-XRT position
  70. GRB 110808A: Swift detection of a burst with optical counterpart
  71. Fermi GBM detection of a SGR-like burst
  72. GRB 110807A: SAO RAS observations
  73. GRB 110807A: Swift detection of a burst or a posible new SGR
  74. Fermi Gamma-ray Burst Monitor trigger 110806.263 is not a GRB
  75. GRB 110726A: two epochs of SAO RAS optical observations
  76. Reprocessed enhanced Swift-XRT positions and GRB products
  77. Konus-Wind observation of GRB 110802A
  78. Fermi GBM trigger 334123030 (110804165) is not a GRB
  79. IPN triangulation of GRB110802A (short/hard burst)
  80. GRB 110801A: optical observations in CrAO
  81. EVLA observation for Fermi burst GRB 110721A
  82. GRB 110731A : Suzaku WAM observation of the prompt emission
  83. GRB 110726A: Swift-XRT refined Analysis
  84. GRB 110801A: SAO RAS optical observations
  85. GRB110801A: MITSuME Ishigakijima Optical Observation at 1 day after the burst
  86. GRB 110801A: Evidence for a jet break
  87. GRB 110801A: MASTER OT observations
  88. GRB 110801A: Swift-BAT refined analysis
  89. Swift/UVOT observations of GRB110801A
  90. GRB 110801A: Swift-XRT refined Analysis
  91. GRB 110801A: Afterglow redshift from 10.4m GTC
  92. GRB110801A: MITSuME Ishigakijima Optical Observation
  93. GRB 110801A: Enhanced Swift-XRT position
  94. AXP 4U 0142+61: Fermi GBM detection
  95. GRB 110801A: TLS Optical afterglow confirmation
  96. GRB 110801A: ROTSE-III Detection of re-brightening from OT
  97. GRB 110801A: Swift detection of a burst with an optical counterpart
  98. GRB 110731A / EVLA upper limits
  99. GRB110731A: MITSuME Ishigakijima Optical Upper Limits
  100. GRB 110731A Gemini-N redshift

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