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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"

28100 results found.

  1. GRB 030329: Correction to GCN 2254
  2. GRB 030329: Optical Observations
  3. GRB 030528 (=H2724) Kyoto optical observation
  4. GRB 030416: Optical Observations
  5. GRB 030329 Optical Observations
  6. GRB030329: XMM-Newton observation
  7. GRB 021004: HST observations
  8. GRB030324: Further Observations of the Candidate Optical Afterglow
  9. GRB030519B (=H2716): Peak Fluxes, Fluences, and Energy Spectrum
  10. IPN triangulation of GRB030519B=H2716 (small error box)
  11. HETE GRB030329, correction to Rc Observations in Loiano
  12. GRB 030329: Optical limit (contemporaneous imaging)
  13. IPN triangulation of GRB030509 (small errror box)
  14. GRB030329, BVRI photometry
  15. GRB030429, refiend optical brightness
  16. GRB 030329: Optical limit (contemporaneous photography)
  17. GRB030418, BVRcIc field photometry
  18. GRB030429, BVRcIc field photometry
  19. GRB030429 (=H2695): A Long GRB Localized by the HETE WXM and SXC
  20. XRF030416 (=U10897): An X-Ray Flash Localized by the HETE WXM
  21. GRB030329: RTT150 optical observations and upper limit for a host
  22. GRB030501, optical observation
  23. GRB030501 triangulation (correction to GCN 2194)
  24. GRB030329: RTT150 optical observations and upper limit for a host
  25. GRB 030429: redshift from VLT spectroscopy
  26. GRB030501B triangulation (single error box)
  27. GRB 030329, BVRI photometry
  28. GRB030429: Optical Observations
  29. GRB030501: TAROT candidate afterglow present in archival images
  30. GRB 030429: confirmation of afterglow candidate
  31. GRB 030329 Oprical observations in Rozhen observatory
  32. SNeIa AS THE POSSIBLE PROGENITORS OF SHORT-DURATION GRBs.
  33. IPN triangulation of GRB030425 (single error box)
  34. GRB 030329, the review of the sky area in plate archive (1950-1998)
  35. GRB 030329: optical spectropolarimetry at VLT
  36. GRB 030329: wide-field photograph by R. Tamura 1 hr after the burst
  37. GRB030329: optical polarization
  38. IPN triangulation of GRB030422 (two large error boxes)
  39. GRB030329, optical observation
  40. MASTER:optical observations GRB030418
  41. MASTER:optical observations probable GRB030414
  42. GRB030418: Kiso near infrared observations
  43. GRB 030418: Optical afterglow
  44. OT GRB 030329: early UBVRcIc spectral evolution
  45. OT GRB 030329: early spectrum
  46. IPN triangulation of GRB030414 (small error box)
  47. IPN triangulation of GRB030413 (small error box)
  48. Superluminal motion in GRB 030329 (Correction)
  49. Superluminal motion in GRB 030329
  50. GRB030329, optical position
  51. IPN triangulation of GRB030406 (small error box)
  52. IPN triangulation of GRB050403 (small error box)
  53. GRB 030329: BVRI photometry at Asiago
  54. GRB 030329: VLT V-band photometry
  55. Kiso observation of the GRB030329 at April 6
  56. GRB 030329, color evolution
  57. GRB030328, UBVRcIc field photometry
  58. GRB 030329 Optical observations
  59. GRB030329: Kiso B and R band observations
  60. GRB030328: R upper limit after 6 hours by MASTER
  61. SDSS 0.5m PT observations of GRB030329 (correction)
  62. SDSS 0.5m PT observations of GRB030329
  63. GRB030329: final R-band light curve by MASTER
  64. GRB030329, optical observation
  65. GRB030329, new UBVRcIc field photometry
  66. GRB 030329, light curve and SN prediction
  67. GRB 030329, BRI photometry
  68. GRB030328: Full Observation, X-ray Fading and Spectrum Measured
  69. GRB030329: Optical observations at Teramo
  70. GRB 030329: Radio observations at GMRT
  71. Further AAVSO V,B,R observations of GRB030329
  72. GRB 030329: Additional Mt. Laguna Optical Observations
  73. GRB 030329: Observations with ANDICAM
  74. GRB030329: further optical photometry and evidence for a light curve discontinuity
  75. triangulation of GRB 030331 (single error box)
  76. GRB 030329: optical observations
  77. Photometry of GRB030329 - Constant OT Magnitude
  78. GRB030329 - OT brightens
  79. GRB 030329, optical photometry
  80. GRB 030324: Optical and NIR Observations
  81. GRB030329: R band light curve by MASTER
  82. GRB030329 - Light curve flattening
  83. GRB 030324, optical search
  84. GRB 030329, optical observations
  85. GRB030328: X-ray Fading and Spectrum Measured with Chandra
  86. GRB030329a: detection by Konus-Wind
  87. GRB030329b: detection by Konus-Wind and Helicon-CoronasF
  88. GRB030329, BVRcIc field photometry
  89. GRB030329, SPM optical observations
  90. GRB 030329: Optical decay and synthesis
  91. GRB030329 optical observations
  92. GRB 030329: Optical pre-Imaging
  93. GRB 030329: Upper limit from 5.6 hours before trigger
  94. GRB030328: X-ray Afterglow Observed with Chandra
  95. GRB 030329, R-band observations
  96. GRB 030329: OT B and R photometry, decline rate
  97. GRB030329: Upper limits from recent and historical observations.
  98. GRB030329 (=H2652): A Long, Extremely Bright GRB Localized by the HETE WXM and SXC
  99. GRB 030329: Optical Afterglow Observations
  100. GRB 030328: optical observations

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