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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"

36138 results found.

  1. GRB 190114C: REM optical/NIR detection (CORRECTION)
  2. GRB 190114C: Sardinia Radio Telescope observations
  3. GRB 190117A: AGILE/MCAL detection of a burst
  4. GRB 190114C: RATIR Optical and NIR Detections
  5. GRB 190114C: RT-22 detection at 36.8 GHz
  6. GRB 190114C: COATLI Optical Detection
  7. GRB 190114C: ePESSTO NTT optical observations
  8. GRB 190114C: Continued UKIRT JHK observation
  9. GRB 190114C: continued CHILESCOPE optical obs
  10. GRB190114C: ATCA detection of the radio afterglow
  11. GRB 190106A: Discovery Channel Telescope observations
  12. GRB 190114B: continued optical observations in Mondy
  13. GRB 190114C: Optical detection from HCT
  14. GRB 190114C: CHILESCOPE optical observations
  15. GRB 190114C: UKIRT JHK observation
  16. GRB 190114A: NOEMA detection of the mm afterglow
  17. GRB 190114A:DOAO/LOAO optical observation
  18. Konus-Wind observation of GRB 190114C
  19. The Swift-XRT WT mode spectrum of GRB190114C
  20. GRB190114C, Long follow up urged
  21. GRB 190114C: KMTNet optical observation
  22. GRB 190114C: LSGT optical observation
  23. GRB 190114A: DOAO/LOAO optical observation
  24. GRB 190114B: Swift-XRT refined Analysis
  25. GRB 190114C: REM optical/NIR detection
  26. GRB 190114C: ALMA detection of a fading mm counterpart
  27. GRB 190114C: Mondy optical observations
  28. GRB 190114C: VLA Detection
  29. GRB 190114C: Swift/UVOT Detection
  30. GRB 190114C: Swift-BAT refined analysis
  31. GRB 190114B: Liverpool Telescope near-IR observations
  32. GRB 190114B: optical afterglow observations in Mondy and Abastumani observatories
  33. GRB 190114B, Swift-BAT refined analysis
  34. GRB 190114B: Swift/UVOT Upper Limits
  35. GRB 190114A: Swift/UVOT Observations
  36. GRB 190114A: Mondy optical afterglow detectio
  37. GRB 190114C: Optical observations
  38. GRB 190114C:Insight-HXMT/HE detection
  39. GRB 190114C: A type 1 BdHN with TeV emission
  40. GRB 190114C: SPI-ACS/INTEGRAL extended emission detection
  41. GRB 190114B: NOT optical counterpart
  42. GRB 190114C: AGILE/MCAL detection
  43. GRB190109B: MITSuME Akeno optical upper limits
  44. GRB 190114C: X-shooter observations of a highly extinguished afterglow
  45. GRB 190114C: Fermi-LAT detection
  46. GRB 190114C: refined redshift by the 10.4m GTC
  47. GRB 190114C: Fermi GBM detection
  48. GRB 190114C: Swift-XRT refined Analysis
  49. GRB 190114B: MITSuME Akeno optical upper limits
  50. GRB 190114C: Enhanced Swift-XRT position
  51. GRB 190114B: GWAC-F60B upper limit
  52. GRB 190114C: GROND detection of the afterglow
  53. MAGIC detects the GRB 190114C in the TeV energy domain
  54. CORRECTED TARGET NAME: GRB 190114C: Planned XMM-Newton observation
  55. GRB 190114C: OASDG optical observations
  56. GRB 150114C#: Planned XMM-Newton observation
  57. GRB 190114A: NOT optical observations
  58. GRB 190114B: Mondy optical afterglow detection
  59. GRB 190114C: NOT optical counterpart and redshift
  60. GRB 190114B: BOOTES-4/MET optical afterglow detection
  61. GRB 190114C: MASTER 4-polarizations filters OT detection
  62. GRB 190114C: Possible host galaxy in Pan-STARRS
  63. GRB 190114B: Enhanced Swift-XRT position
  64. GRB 190114C: MASTER afterglow Detection
  65. INTEGRAL observation of IceCube-190104A
  66. GRB 190114C: Swift detection of a very bright burst with a bright optical counterpart
  67. GRB 190114A: OSN Detection
  68. GRB 190114B: Swift detection of a burst
  69. GRB 190114A: Swift-BAT refined analysis
  70. GRB 190103B: Swift/UVOT Upper Limits
  71. GRB 190114A: Swift-XRT refined Analysis
  72. GRB 190114A: GROND detection of the afterglow
  73. GRB 190114A: Enhanced Swift-XRT position
  74. GRB 190114A: VLT/X-shooter redshift
  75. GRB 190114A: Prompt enhanced Swift-XRT position
  76. GRB 190114A: Possible UVOT Detection
  77. GRB 190114A: Swift detection of a burst
  78. GRB 190110A：Insight-HXMT/HE detection
  79. Konus-Wind observation of GRB 190110A
  80. GRB 190110A, Swift-BAT refined analysis
  81. Correction to GCN Circular 23663: GRB 190109A: Swift UVOT Upper Limits
  82. Konus-Wind observation of GRB 190103A
  83. GRB 190110A: Fermi GBM detection
  84. GRB 190110A: Swift detection of a burst
  85. GRB 181228A: FRAM-ORM optical limit
  86. GRB 190106A: GMG continued observation
  87. GRB 190109B: Fermi GBM observation
  88. GRB 190106A: OSN Afterglow Observations
  89. GRB 190109B: Swift/UVOT Upper Limits
  90. GRB 190109A: Swift/UVOT Upper Limits
  91. GRB 190109B: Swift-XRT refined Analysis
  92. GRB 190106A: optical observations, possible jet break detection
  93. GRB 190106A: Liverpool Telescope observations
  94. GRB 190109B: Swift-BAT refined analysis
  95. GRB 190109A: Fermi GBM observation
  96. Correction to the GCN circ. 23654 / GRB 190109B: Mondy optical upper limit
  97. GRB 190109B: COATLI Optical Observations
  98. GRB 190109B: BOOTES-5/JGT optical observations
  99. GRB 190109B: Mondy optical upper limit
  100. GRB 190109A: Swift-BAT refined analysis

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