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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"

37347 results found.

  1. GRB 130527A: Suzaku WAM observation of the prompt emission
  2. GRB 130529A: Swift-BAT refined analysis
  3. GRB 130518A: Suzaku WAM observation of the prompt emission
  4. GRB 130529A: Swift-XRT refined Analysis
  5. GRB 130529A: Enhanced Swift-XRT position
  6. Konus-Wind observation of GRB 130528A
  7. GRB 130528A: Swift/UVOT Upper Limits
  8. Konus-Wind observation of GRB 130527A
  9. GRB 130529A: Prompt enhanced Swift-XRT position
  10. GRB 130528A: Swift-BAT refined analysis
  11. GRB 130529A: Swift detection of a burst
  12. GRB 130528A: Swift-XRT refined Analysis
  13. GRB 130527A: Swift/UVOT Upper Limits
  14. GRB 130528A: Enhanced Swift-XRT position
  15. GRB 130521A: Skynet/PROMPT detection of an extremely red afterglow
  16. GRB 130528A: optical upper limit
  17. GRB 130528A: Swift detection of a burst
  18. GRB 130527A: NOT optical counterpart
  19. GRB 130527A: RATIR Optical and NIR Observations
  20. GRB 130527A: Swift-BAT refined analysis
  21. GRB 130527A: Swift-XRT refined Analysis
  22. GRB 130527A: BOOTES-2 & 3.5m CAHA opt/nIR observations
  23. GRB 130527A: Enhanced Swift-XRT position
  24. GRB 130527A: Prompt enhanced Swift-XRT position
  25. GRB 130527A: Swift detection of a bright burst
  26. GRB 130514A: Konus-Wind and Swift/BAT joint spectral analysis
  27. Swift Trigger 556533 is not an astrophysical event
  28. GRB 130521B: Suzaku WAM observation of the prompt emission
  29. Konus-Wind observation of GRB 130521B
  30. GRB 130521A: Skynet/PROMPT observations
  31. IPN Triangulation of GRB 130521B
  32. GRB 130514B: Further Swift-XRT Observations
  33. GRB 130518B, Swift-BAT refined analysis
  34. GRB 130521A, Swift-BAT refined analysis
  35. GRB 130521A: TAROT La Silla observatory optical observations
  36. GRB 130521A: Swift detection of a burst
  37. Swift XRT observation of GRB 130518B
  38. GRB 130518A: mm detection at PdBI
  39. GRB 130515A: Suzaku WAM observation of the prompt emission
  40. GRB 130518A: Gemini Redshift confirmation
  41. GRB 130427A / SN 2013cq: Hubble Space Telescope Observations
  42. GRB 130518A: 10.4m GTC/OSIRIS redshift
  43. GRB 130518A: Continued RATIR Optical Observations - Fading
  44. Correction to GCN Circular 14682 (GRB 130518B)
  45. GRB 130518B found in ground analysis of Swift-BAT data
  46. GRB 130518A: Confirmation of the X-ray afterglow.
  47. GRB 130518A: P60 Afterglow Observations
  48. GRB 130518A: RATIR Optical and NIR Observations
  49. GRB 130518A: Swift XRT and UVOT possible afterglow
  50. Konus-Wind observation of GRB 130518A
  51. GRB 130518A Swift-BAT position from ground analysis
  52. GRB 130518A: Fermi LAT detection
  53. GRB 130518A: Fermi GBM detection
  54. VLT observations of GRB 130427A
  55. GRB 130427A: Konkoly optical observations
  56. GRB 130515A: IRSF NIR Observation
  57. GRB 130515A: Further Gemini Observations
  58. GRB 130427A:: BTA spectroscopic observations on May 10/11.
  59. Konus-Wind observation of GRB 130515A
  60. GRB 130515A: FORS2 spectroscopy of candidate counterpart
  61. GRB 130427A: Continued RATIR Optical and NIR Observations - Photometric Evidence for a New Component
  62. GRB 130514B: RATIR Optical and NIR Observations
  63. Fermi GBM trigger 390275038 / 130515072 is not a GRB
  64. GRB 130515A: Fermi GBM detection
  65. GRB 130427A: Skynet detections of a possible supernova
  66. GRB 130515A: Swift-XRT refined Analysis
  67. GRB 130515A: Swift/UVOT Upper Limits
  68. GRB 130514B Swift-BAT observations
  69. GRB 130515A: Swift-BAT refined analysis
  70. GRB 130514B: GROND observations
  71. GRB 130515A: Gemini/GMOS Observations
  72. GRB 130515A: GROND Observations
  73. GRB 130515A: Enhanced Swift-XRT position
  74. GRB 130515A: VLT acquisition observation
  75. GRB 130511A: SSO 2.3m observation
  76. GRB 130514B: Swift-XRT Observations
  77. GRB 130515A: Swift detection of a short burst
  78. GRB 130514A: Swift-XRT refined Analysis
  79. GRB 130514A: Skynet/PROMPT/DSO Detections
  80. GRB 130513A: Bassano Bresciano optical upper limit
  81. GRB 130427A: Spectroscopic detection of the SN from the 10.4m GTC
  82. GRB 130427A: optical observations
  83. GRB130514B: MASTER-Net optical observations.
  84. GRB 130514A: RATIR Optical and NIR Observations
  85. GRB 130513A: RATIR Optical and NIR Observations
  86. GRB 130513A: Swift/UVOT Upper Limits
  87. GRB 130514A: Swift/UVOT Upper Limits
  88. GRB 130513A: GROND observations
  89. GRB 130514B: a long GRB detected by INTEGRAL
  90. GRB 130514A: Enhanced Swift-XRT position
  91. GRB 130514A: Swift-BAT refined analysis
  92. GRB 130513A: Swift-XRT detection of the afterglow.
  93. GRB 130514A: GROND optical-NIR afterglow discovery and photo-z
  94. GRB 130514A: P60 Observations
  95. GRB 130514A: Swift detection of a burst
  96. GRB 130427A: Tautenburg 2nd epoch: No break, no clear SN
  97. GRB 130513A: a long GRB detected by INTEGRAL
  98. GRB130508A: MASTER-Net optical observations
  99. GRB130511A: SOAO Optical Observation
  100. GRB 130511A: Swift-XRT refined Analysis

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