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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"

15378 results found.

  1. VLA non-detection of SGR 0501+4516
  2. Radio Detection of SGR 0501+4516: Retraction
  3. GRB 080828: SuperAGILE GRB Localization
  4. SGR 0501+4516: Decline in Activity
  5. SGR 0501+4516: Proximity to supernova remnant HB9
  6. GRB080823: Fermi Gamma-ray Burst Monitor detection
  7. Konus-Wind observation of GRB 080825B
  8. SGR 0501+4516: Fermi GBM (formerly GLAST Burst Monitor) observations of three exceptionally intense outbursts
  9. Suzaku ToO Observation of SGR 0501+4516
  10. SGR 0501+4516: radio pulsar searches with GBT and WSRT
  11. GRB 080825B: GRB Localization by SuperAGILE
  12. Konus-Wind observations of new SGR 0501+4516
  13. Trigger 321551: Continued Large Flaring of SGR 0501+4516
  14. New Soft Gamma Repeater 0501+4516 (GRB 080822): GLAST Burst Monitor detection
  15. SGR 0501+4516: optical observations
  16. GRB080818B: GLAST Burst Monitor detection
  17. GRB 080822 (SGR 0501+4516): archival optical observations
  18. New Soft Gamma Repeater 0501+4516 was GRB 080822
  19. GLAST Burst Monitor detection of a GRB: 080816B
  20. GLAST Burst Monitor detection of GRB080816
  21. GRB080810: optical observations
  22. GLAST Burst Monitor detection of GRB 080812
  23. GRB 080810: Konus-Wind and Swift/BAT joint spectral analysis
  24. GLAST Burst Monitor detection of GRB 080810
  25. GRB 080810: Swift/UVOT Refined Analysis
  26. GRB 080810: optical observations
  27. GRB 080810: Liverpool Telescope observations
  28. GRB 080810: Kanazawa optical observation
  29. GRB 080810: Observations from NOT
  30. GRB 080810: KANATA optical-NIR observation, update
  31. GRB 080810: ROTSE-III Prompt Detection of Optical Counterpart
  32. GRB 080723B: GROND upper limits
  33. GRB 080723B: XMM-Newton observation
  34. GRB 080805: Faulkes Telescope South optical observations
  35. GRB 080804: GROND observations
  36. GRB 080727B: Late VLT imaging
  37. GRB 080805: Swift/UVOT Upper Limits
  38. GRB 080804: Swift/UVOT Refined Analysis
  39. GRB 080804: Faulkes Telescope South observations
  40. GRB 080805: Afterglow confirmation
  41. GRB 080804: UVES redshift
  42. GRB 080727C: Suzaku WAM observation of the prompt emission
  43. GRB 080727B: KAIT photometry and an early lightcurve break
  44. Konus-Wind observation of GRB 080727B
  45. GRB 080727C: Swift XRT refined analysis
  46. GRB 080727C: Liverpool Telescope observations
  47. GRB 080727B: REM NIR afterglow prompt detection
  48. GRB 080727B: Swift/UVOT Upper Limits
  49. GRB 080727B: REM prompt observations
  50. GRB 080726: GRB Localization by SuperAGILE
  51. GRB080723B: Swift/UVOT Upper Limits
  52. GRB 080725: REM prompt observations
  53. Konus-Wind observation of GRB 080723B
  54. GRB 080723B - Swift-XRT refined analysis
  55. GRB 080723B: AGILE GRID and MCAL results
  56. GRB 080723B: Detection and Localization by SuperAGILE
  57. GRB 080723B : a long GRB detected with INTEGRAL
  58. GRB 080721 : Lulin 2nd optical follow-ups
  59. GRB 080721: OA fading and redshift
  60. Konus-Wind observation of GRB 080721
  61. Retraction of Swift Trigger 317393
  62. Trigger 317205: Swift detection of an outburst from XTE J1701-407
  63. GRB 080714: GROND confirmation of the optical/NIR afterglow
  64. Konus-Wind observation of GRB 080714
  65. GRB 080710: Optical observation with MITSuME Okayama
  66. GRB 080710: TLS observations, steepening afterglow decay
  67. GRB 080702B: Swift XRT confirmation of the afterglow
  68. GRB080710: Swift/UVOT observations
  69. GRB 080710: REM afterglow confirmation & brightening
  70. New Swift-XRT GRB products available online.
  71. GRB 080707: Swift XRT refined analysis
  72. GRB 080707: VLT redshift
  73. Refined analysis of Swift Trigger 316063, is IGR J08408-4503
  74. GRB 080703: GROND Upper Limits
  75. GRB 080702B: GROND Upper Limits
  76. GRB 080703: VLT observations of the afterglow
  77. Swift/UVOT observation of GRB080702A
  78. GRB 080625: Suzaku WAM observation of the prompt emission
  79. Swift Trigger 315630: Probably not a GRB
  80. GRB 080623: Suzaku WAM observation of the prompt emission
  81. GRB 080625: Gamma Ray Burst Localization by SuperAGILE
  82. GRB080623: Swift UVOT followup observations
  83. GRB 080623: TAROT La Silla observatory optical observations
  84. GRB080607: optical observation
  85. GRB 070809: Putative host galaxy and redshift
  86. GRB080613A: Optical upper limits with Okayama MITSuME telescope
  87. Konus-Wind observation of GRB 080613B
  88. GRB 080603A: optical observations on June 04
  89. GRB 080613A: GROND Confirmation of the Afterglow Candidate
  90. GRB 080613B: GROND Upper Limits
  91. GRB 080613 : a long GRB detected with INTEGRAL
  92. GRB 080603A: Late-time Keck imaging and spectroscopy
  93. GRB 080603A: final Swift-XRT observations.
  94. GRB 080607: AGILE-MCAL observation of the prompt emission
  95. GRB 080603B - TLS 2nd Epoch: Another Break
  96. GRB 080605: TLS 3rd Epoch - Source Confusion
  97. Konus-Wind observation of GRB 080607
  98. GRB 080603A: optical observations
  99. Swift/UVOT Observations of GRB080607
  100. Konus-Wind observation of GRB 080605

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