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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.

Advanced Search Examples (click to copy):

subject:"Swift"
body:"GRB"
submitter:"Judith Racusin"

45567 results found.

  1. GRB030329: Optical observations
  2. SDSS 0.5m PT observations of GRB030329 (correction)
  3. SDSS 0.5m PT observations of GRB030329
  4. GRB 030329, Optical observations
  5. GRB 030329, nearby galaxies
  6. GRB030329, cessation of fading
  7. GRB030329: final R-band light curve by MASTER
  8. GRB030329 - more 15 GHz radio data
  9. GRB030329 Radio 23/43/90 GHz observations at Nobeyama
  10. GRB 030329: Sub-millimeter detection
  11. GRB 030329: SARA Optical Observations
  12. GRB 030329: SARA Optical Observations
  13. OT GRB light curves and SN predictions
  14. GRB030329, optical observation
  15. GRB030329, optical observation
  16. GRB030329, new UBVRcIc field photometry
  17. GRB 030329, light curve and SN prediction
  18. GRB030329: optical observations at Tokyo Tech
  19. GRB 030329: optical observations
  20. GRB030329: multiple re-brightening phases
  21. GRB 030329, BRI photometry
  22. GRB030328: Full Observation, X-ray Fading and Spectrum Measured
  23. GRB 030329 , SPM optical observations
  24. GRB030329: Optical observations at Teramo
  25. GRB 030329: Radio observations at GMRT
  26. Further AAVSO V,B,R observations of GRB030329
  27. GRB 030329: Additional Mt. Laguna Optical Observations
  28. GRB 030329: SARA Optical Observations
  29. GRB 030329: Observations with ANDICAM
  30. GRB030329: Optical observations
  31. GRB030329: further optical photometry and evidence for a light curve discontinuity
  32. GRB 030329: Correction to GCN 2056
  33. GRB 030329: fitting parameters and re-brightening
  34. GRB 030329: KAIT optical photometry
  35. GRB030329 Further RBO Optical Observations
  36. triangulation of GRB 030331 (single error box)
  37. GRB030329 - OT rebrightens
  38. GRB 030329: SARA Optical Observations
  39. AAVSO V & R observations of GRB030329
  40. IPN triangulation of GRB030331 (annulus)
  41. GRB 030329: optical observations
  42. IPN triangulation of GRB030329b (large error box)
  43. GRB 030329: beginning of the new fading phase in optical band
  44. GRB 030329, optical spectroscopy
  45. GRB 030329: fading X-ray afterglow with RXTE
  46. GRB 030329: optical photometry
  47. GRB030329: Optical observations
  48. Photometry of GRB030329 - Constant OT Magnitude
  49. GRB 030329, R-band observations
  50. GRB 030329, R-band light curve
  51. GRB 030329: further optical observations
  52. GRB030329 - OT brightens
  53. GRB 030329: OT observations at Kanazawa
  54. GRB030329 15 GHz radio observation
  55. GRB 030329 RBO V Optical Observations
  56. GRB 030329, optical photometry
  57. GRB030329: Near Infrared Observations
  58. GRB 030324: Optical and NIR Observations
  59. GRB 030328, optical photometry
  60. GRB030329: R band light curve by MASTER
  61. GRB030329 - Light curve flattening
  62. GRB 030329: SARA Optical Observations
  63. GRB 030324, optical search
  64. GRB030329 - near contemporaneous optical limits from CONCAM
  65. GRB030329: R and B observations
  66. GRB 030329, optical observations
  67. GRB030329: Optical observations
  68. GRB030328: X-ray Fading and Spectrum Measured with Chandra
  69. GRB030329a: detection by Konus-Wind
  70. GRB030329b: detection by Konus-Wind and Helicon-CoronasF
  71. GRB 030329: Light curve observed during the change of its slope.
  72. GRB030329, BVRcIc field photometry
  73. GRB030329, SPM optical observations
  74. GRB 030329: Optical Decay
  75. Redshift of GRB 030329
  76. GRB030329: ROTSE network observes steepening of decay curve
  77. GRB 030329, optical photometry
  78. GRB 030329: Optical decay and synthesis
  79. GRB030329 optical observations
  80. GRB030329: optical spectroscopy with the TNG
  81. GRB 030329: Radio Observations
  82. GRB 030329, optical spectroscopy
  83. GRB 030329: still bright
  84. GRB 030329: Optical pre-Imaging
  85. GRB 030329: visual observations
  86. GRB 030329: Upper limit from 5.6 hours before trigger
  87. GRB030328: R optical observation
  88. GRB030328: X-ray Afterglow Observed with Chandra
  89. GRB 030323: Gemini South VRI obsevations.
  90. GRB030329: Optical observations
  91. GRB030329 optical observations
  92. GRB030329:optical observations by MASTER
  93. GRB 030329: optical observations
  94. GRB 030329, R-band observations
  95. GRB 030329: OT B and R photometry, decline rate
  96. GRB030329: Upper limits from recent and historical observations.
  97. GRB030329 (=H2652): A Long, Extremely Bright GRB Localized by the HETE WXM and SXC
  98. RXTE detection of GRB 030329 afterglow
  99. GRB 030329: Optical Afterglow Observations
  100. GRB 030329: precise position from Kyoto images

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