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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"

28117 results found.

  1. GRB030706 triangulation (single large error box)
  2. GRB030329, optical observation in May
  3. IPN triangulation of GRB030626 (single large error box)
  4. IPN triangulation of GRB030626 (two large error boxes)
  5. GRB030329: second XMM-Newton observation
  6. GRB030329 -- RATAN-600 data in April-May
  7. GRB030528(=H2724): X-ray Afterglow Identified in Second Epoch
  8. IPN triangulation of GRB030606 (two alternate error boxes)
  9. GRB 030528: Infrared Observations and the Proposed IR Counterpart
  10. GRB 030528: tentative NIR counterpart
  11. GRB030528(=H2724): Observations with the Chandra X-ray Observatory
  12. GRB030528, BVRI field photometry
  13. GRB030329, SPM optical observations
  14. GRB030528: Chandra TOO Planned
  15. GRB030528(=H2724): Revised SXC Localization
  16. GRB 030528 Bisei optical observation
  17. GRB030528 (H2724): A long GRB localized by HETE
  18. GRB 030329: Correction to GCN 2254
  19. GRB 030329: Optical Observations
  20. GRB 030528 (=H2724) Kyoto optical observation
  21. GRB 030416: Optical Observations
  22. GRB 030329 Optical Observations
  23. GRB030329: XMM-Newton observation
  24. GRB 021004: HST observations
  25. GRB030324: Further Observations of the Candidate Optical Afterglow
  26. GRB030519B (=H2716): Peak Fluxes, Fluences, and Energy Spectrum
  27. IPN triangulation of GRB030519B=H2716 (small error box)
  28. HETE GRB030329, correction to Rc Observations in Loiano
  29. GRB 030329: Optical limit (contemporaneous imaging)
  30. IPN triangulation of GRB030509 (small errror box)
  31. GRB030329, BVRI photometry
  32. GRB030429, refiend optical brightness
  33. GRB 030329: Optical limit (contemporaneous photography)
  34. GRB030418, BVRcIc field photometry
  35. GRB030429, BVRcIc field photometry
  36. GRB030429 (=H2695): A Long GRB Localized by the HETE WXM and SXC
  37. XRF030416 (=U10897): An X-Ray Flash Localized by the HETE WXM
  38. GRB030329: RTT150 optical observations and upper limit for a host
  39. GRB030501, optical observation
  40. GRB030501 triangulation (correction to GCN 2194)
  41. GRB030329: RTT150 optical observations and upper limit for a host
  42. GRB 030429: redshift from VLT spectroscopy
  43. GRB030501B triangulation (single error box)
  44. GRB 030329, BVRI photometry
  45. GRB030429: Optical Observations
  46. GRB030501: TAROT candidate afterglow present in archival images
  47. GRB 030429: confirmation of afterglow candidate
  48. GRB 030329 Oprical observations in Rozhen observatory
  49. SNeIa AS THE POSSIBLE PROGENITORS OF SHORT-DURATION GRBs.
  50. IPN triangulation of GRB030425 (single error box)
  51. GRB 030329, the review of the sky area in plate archive (1950-1998)
  52. GRB 030329: optical spectropolarimetry at VLT
  53. GRB 030329: wide-field photograph by R. Tamura 1 hr after the burst
  54. GRB030329: optical polarization
  55. IPN triangulation of GRB030422 (two large error boxes)
  56. GRB030329, optical observation
  57. MASTER:optical observations GRB030418
  58. MASTER:optical observations probable GRB030414
  59. GRB030418: Kiso near infrared observations
  60. GRB 030418: Optical afterglow
  61. OT GRB 030329: early UBVRcIc spectral evolution
  62. OT GRB 030329: early spectrum
  63. IPN triangulation of GRB030414 (small error box)
  64. IPN triangulation of GRB030413 (small error box)
  65. Superluminal motion in GRB 030329 (Correction)
  66. Superluminal motion in GRB 030329
  67. GRB030329, optical position
  68. IPN triangulation of GRB030406 (small error box)
  69. IPN triangulation of GRB050403 (small error box)
  70. GRB 030329: BVRI photometry at Asiago
  71. GRB 030329: VLT V-band photometry
  72. Kiso observation of the GRB030329 at April 6
  73. GRB 030329, color evolution
  74. GRB030328, UBVRcIc field photometry
  75. GRB 030329 Optical observations
  76. GRB030329: Kiso B and R band observations
  77. GRB030328: R upper limit after 6 hours by MASTER
  78. SDSS 0.5m PT observations of GRB030329 (correction)
  79. SDSS 0.5m PT observations of GRB030329
  80. GRB030329: final R-band light curve by MASTER
  81. GRB030329, optical observation
  82. GRB030329, new UBVRcIc field photometry
  83. GRB 030329, light curve and SN prediction
  84. GRB 030329, BRI photometry
  85. GRB030328: Full Observation, X-ray Fading and Spectrum Measured
  86. GRB030329: Optical observations at Teramo
  87. GRB 030329: Radio observations at GMRT
  88. Further AAVSO V,B,R observations of GRB030329
  89. GRB 030329: Additional Mt. Laguna Optical Observations
  90. GRB 030329: Observations with ANDICAM
  91. GRB030329: further optical photometry and evidence for a light curve discontinuity
  92. triangulation of GRB 030331 (single error box)
  93. GRB 030329: optical observations
  94. Photometry of GRB030329 - Constant OT Magnitude
  95. GRB030329 - OT brightens
  96. GRB 030329, optical photometry
  97. GRB 030324: Optical and NIR Observations
  98. GRB030329: R band light curve by MASTER
  99. GRB030329 - Light curve flattening
  100. GRB 030324, optical search

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