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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').
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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"

15398 results found.

  1. Optical observations of GRB 100901A
  2. GRB10901A: Murikabushi telescope observation at 3 days after the burst
  3. GRB 100902A: UKIRT JK Observation
  4. GRB10901A: Optical observations at IAO
  5. Konus-Wind observation of GRB 100829A
  6. Tentative redshift of GRB100902A from Swift-XRT data
  7. GRB 100901A: optical observation at Mt.Terskol
  8. GRB 100901A: Kanata Telescope observation of the optical afterglow
  9. GRB100901A: MITSuME Okayama Optical Observation at 1 day after the burst
  10. GRB 100901A: TLS Observations: Break?
  11. GRB100901A: Errata of MITSuME Okayama about reference catalog
  12. GRB 100901A: SARA-N observations
  13. GRB100901A: MITSuME Okayama Optical Observation
  14. Konus-Wind observation of GRB 100826A
  15. GRB100826A: Fermi-LAT Observations
  16. GRB 100823A: optical observations
  17. GRB100807A: R band observations
  18. GRB 100823A: VLT/X-Shooter spectroscopy
  19. GRB 100823A: TNG NIR observations
  20. GRB 100823: 1.5m OSN I-band observations
  21. GRB 100823A: WHT observations
  22. GRB 100814A: Suzaku WAM observation of the prompt emission
  23. GRB 100816A: Fermi GBM observation (correction to GCN 11124)
  24. Konus-Wind observation of GRB 100816A
  25. GRB100816A: MITSuME optical upper limits
  26. GRB 100816A: Fermi GBM observation
  27. GRB 100816A: VLT and Gemini-N revised redshift
  28. GRB 100814A : Liverpool Telescope Observations
  29. Konus-Wind observation of GRB 100814A
  30. GRB 100816A : Lulin r'-band observation
  31. GRB 100816A: Gemini-N spectroscopy
  32. GRB 100816A: Swift UVOT Observations
  33. GRB 100816A: Swift-BAT spectral lag results
  34. GRB 100816A: CQUEAN riz-band Detection, Host Galaxy?
  35. GRB100816A: TNG optical afterglow confirmation.
  36. GRB 100814A: CQUEAN r- and i-band Observation
  37. GRB100814A: Magellan Echellette Observations
  38. GRB 100805A: the 4-th epoch of SAO RAS optical observations
  39. GRB 100805A: optical observation in CrAO (correction to the GCN 11077 and second epoch)
  40. GRB 100807A: P200 Infrared Observations
  41. GRB 100805A: the 3-rd epoch of SAO RAS optical observations
  42. GRB 100805A: optical observation in CrAO
  43. GRB100807A: MITSuME optical upper limits
  44. GRB 100805A: Xinglong TNT optical observation
  45. GRB 100805A: ROTSE-III Optical detection
  46. GRB 100805A: Swift/UVOT Observations of the Optical Afterglow
  47. GRB 100802A: Fermi GBM observation
  48. GRB 100713A: CrAO optical limits
  49. GRB100802A: MITSuME optical upper limits
  50. GRB 100728A: Suzaku WAM observation of the prompt emission
  51. GRB 100802A: Liverpool Telescope observations
  52. GRB 100728B: Swift/UVOT Observations
  53. Konus-Wind observation of GRB 100728A
  54. GRB 100728A: GROND Detection of the NIR Afterglow Candidate
  55. GRB 100728B: Fermi GBM observation
  56. GRB 100728B: GROND Detection of the NIR Afterglow
  57. GRB 100728B: Skynet/PROMPT Detections (correction)
  58. GRB 100728A: Fermi GBM observation
  59. GRB 100724B: AGILE/GRID analysis
  60. GRB 100724B: Suzaku WAM observation of the prompt emission
  61. GRB 100724B: gamma-ray detection by AGILE
  62. Konus-Wind observation of GRB 100724B
  63. GRB 100724B: Fermi LAT and GBM analysis
  64. GRB 100724A: Swift/UVOT observations
  65. GRB 100724A: fading afterglow seen with GROND
  66. GRB 100614A: 10.4-m GTC deep-optical limit
  67. GRB 100713A: optical observation in Maidanak
  68. GRB 100713A: further inspection of TNG images
  69. GRB 100713A: GROND upper limits
  70. GRB 100713A: a long GRB detected by INTEGRAL
  71. GRB 100707A: Suzaku WAM observation of the prompt emission
  72. Konus-Wind observation of GRB 100707A
  73. GRB 100707A: Fermi LAT detection
  74. GRB 100707A: Fermi GBM detection
  75. GRB 100628A: Swift XRT/UVOT refined analysis
  76. Tentative redshift of GRB100704A from Swift-XRT data
  77. Konus-Wind observation of GRB 100701B
  78. Konus-Wind observation of GRB 100704A
  79. GRB 100704A: Swift XRT refined analysis
  80. GRB 100704A: Fermi GBM observation
  81. GRB 100615A: Additional Gemini/NIRI observations
  82. GRB 100526A: Gemini/NIRI afterglow confirmation and host galaxy
  83. GRB 100701B: Fermi GBM detection
  84. GRB 100625A: Fermi GBM detection
  85. GRB 100628A: GROND optical/NIR observations of the host candidate
  86. GRB 100628A: Swift XRT refined position
  87. GRB100625A: GROND confirmation of constant source
  88. GRB 100628A: INTEGRAL SPI-ACS light curve
  89. Konus-Wind observation of GRB 100625A
  90. GRB 100418A: late time optical observations
  91. Konus-Wind observation of GRB 100621A
  92. GRB 100619A: Correction to the Fermi GBM trigger time
  93. GRB 100621A: VLT/X-shooter redshift
  94. GRB 100606A: Optical Limits
  95. GRB 100619A: Fermi GBM detection
  96. GRB 100614A: NOT optical upper limits
  97. GRB 100615A: Fermi GBM detection
  98. GRB 100615A: PAIRITEL NIR Upper Limits
  99. GRB 100606A: Suzaku WAM observation of the prompt emission
  100. GRB 100606A: GROND observations

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