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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"

15406 results found.

  1. GRB100906A: Optical observations at IAO
  2. GRB 100906A: TLS Monitoring
  3. GRB 100906A: Swift/UVOT Observations
  4. GRB100906A: Errata of MITSuME Okayama about observation time
  5. GRB100906A: MITSuME Okayama Optical Observation
  6. GRB 100905A: Swift/UVOT Upper Limits
  7. GRB 100901A: TLS observations, SDSS calibration, decay slope
  8. GRB100904A: BOOTES-3 Upper Limit
  9. Optical observations of GRB 100901A
  10. GRB10901A: Murikabushi telescope observation at 3 days after the burst
  11. GRB 100902A: UKIRT JK Observation
  12. GRB10901A: Optical observations at IAO
  13. Konus-Wind observation of GRB 100829A
  14. Tentative redshift of GRB100902A from Swift-XRT data
  15. GRB 100901A: optical observation at Mt.Terskol
  16. GRB 100901A: Kanata Telescope observation of the optical afterglow
  17. GRB100901A: MITSuME Okayama Optical Observation at 1 day after the burst
  18. GRB 100901A: TLS Observations: Break?
  19. GRB100901A: Errata of MITSuME Okayama about reference catalog
  20. GRB 100901A: SARA-N observations
  21. GRB100901A: MITSuME Okayama Optical Observation
  22. Konus-Wind observation of GRB 100826A
  23. GRB100826A: Fermi-LAT Observations
  24. GRB 100823A: optical observations
  25. GRB100807A: R band observations
  26. GRB 100823A: VLT/X-Shooter spectroscopy
  27. GRB 100823A: TNG NIR observations
  28. GRB 100823: 1.5m OSN I-band observations
  29. GRB 100823A: WHT observations
  30. GRB 100814A: Suzaku WAM observation of the prompt emission
  31. GRB 100816A: Fermi GBM observation (correction to GCN 11124)
  32. Konus-Wind observation of GRB 100816A
  33. GRB100816A: MITSuME optical upper limits
  34. GRB 100816A: Fermi GBM observation
  35. GRB 100816A: VLT and Gemini-N revised redshift
  36. GRB 100814A : Liverpool Telescope Observations
  37. Konus-Wind observation of GRB 100814A
  38. GRB 100816A : Lulin r'-band observation
  39. GRB 100816A: Gemini-N spectroscopy
  40. GRB 100816A: Swift UVOT Observations
  41. GRB 100816A: Swift-BAT spectral lag results
  42. GRB 100816A: CQUEAN riz-band Detection, Host Galaxy?
  43. GRB100816A: TNG optical afterglow confirmation.
  44. GRB 100814A: CQUEAN r- and i-band Observation
  45. GRB100814A: Magellan Echellette Observations
  46. GRB 100805A: the 4-th epoch of SAO RAS optical observations
  47. GRB 100805A: optical observation in CrAO (correction to the GCN 11077 and second epoch)
  48. GRB 100807A: P200 Infrared Observations
  49. GRB 100805A: the 3-rd epoch of SAO RAS optical observations
  50. GRB 100805A: optical observation in CrAO
  51. GRB100807A: MITSuME optical upper limits
  52. GRB 100805A: Xinglong TNT optical observation
  53. GRB 100805A: ROTSE-III Optical detection
  54. GRB 100805A: Swift/UVOT Observations of the Optical Afterglow
  55. GRB 100802A: Fermi GBM observation
  56. GRB 100713A: CrAO optical limits
  57. GRB100802A: MITSuME optical upper limits
  58. GRB 100728A: Suzaku WAM observation of the prompt emission
  59. GRB 100802A: Liverpool Telescope observations
  60. GRB 100728B: Swift/UVOT Observations
  61. Konus-Wind observation of GRB 100728A
  62. GRB 100728A: GROND Detection of the NIR Afterglow Candidate
  63. GRB 100728B: Fermi GBM observation
  64. GRB 100728B: GROND Detection of the NIR Afterglow
  65. GRB 100728B: Skynet/PROMPT Detections (correction)
  66. GRB 100728A: Fermi GBM observation
  67. GRB 100724B: AGILE/GRID analysis
  68. GRB 100724B: Suzaku WAM observation of the prompt emission
  69. GRB 100724B: gamma-ray detection by AGILE
  70. Konus-Wind observation of GRB 100724B
  71. GRB 100724B: Fermi LAT and GBM analysis
  72. GRB 100724A: Swift/UVOT observations
  73. GRB 100724A: fading afterglow seen with GROND
  74. GRB 100614A: 10.4-m GTC deep-optical limit
  75. GRB 100713A: optical observation in Maidanak
  76. GRB 100713A: further inspection of TNG images
  77. GRB 100713A: GROND upper limits
  78. GRB 100713A: a long GRB detected by INTEGRAL
  79. GRB 100707A: Suzaku WAM observation of the prompt emission
  80. Konus-Wind observation of GRB 100707A
  81. GRB 100707A: Fermi LAT detection
  82. GRB 100707A: Fermi GBM detection
  83. GRB 100628A: Swift XRT/UVOT refined analysis
  84. Tentative redshift of GRB100704A from Swift-XRT data
  85. Konus-Wind observation of GRB 100701B
  86. Konus-Wind observation of GRB 100704A
  87. GRB 100704A: Swift XRT refined analysis
  88. GRB 100704A: Fermi GBM observation
  89. GRB 100615A: Additional Gemini/NIRI observations
  90. GRB 100526A: Gemini/NIRI afterglow confirmation and host galaxy
  91. GRB 100701B: Fermi GBM detection
  92. GRB 100625A: Fermi GBM detection
  93. GRB 100628A: GROND optical/NIR observations of the host candidate
  94. GRB 100628A: Swift XRT refined position
  95. GRB100625A: GROND confirmation of constant source
  96. GRB 100628A: INTEGRAL SPI-ACS light curve
  97. Konus-Wind observation of GRB 100625A
  98. GRB 100418A: late time optical observations
  99. Konus-Wind observation of GRB 100621A
  100. GRB 100619A: Correction to the Fermi GBM trigger time

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