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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"

28119 results found.

  1. IPN triangulation of GRB030714 (two large error boxes)
  2. IPN triangulation of GRB030715 (two large error boxes)
  3. GRB030706 triangulation (single large error box)
  4. GRB030329, optical observation in May
  5. IPN triangulation of GRB030626 (single large error box)
  6. IPN triangulation of GRB030626 (two large error boxes)
  7. GRB030329: second XMM-Newton observation
  8. GRB030329 -- RATAN-600 data in April-May
  9. GRB030528(=H2724): X-ray Afterglow Identified in Second Epoch
  10. IPN triangulation of GRB030606 (two alternate error boxes)
  11. GRB 030528: Infrared Observations and the Proposed IR Counterpart
  12. GRB 030528: tentative NIR counterpart
  13. GRB030528(=H2724): Observations with the Chandra X-ray Observatory
  14. GRB030528, BVRI field photometry
  15. GRB030329, SPM optical observations
  16. GRB030528: Chandra TOO Planned
  17. GRB030528(=H2724): Revised SXC Localization
  18. GRB 030528 Bisei optical observation
  19. GRB030528 (H2724): A long GRB localized by HETE
  20. GRB 030329: Correction to GCN 2254
  21. GRB 030329: Optical Observations
  22. GRB 030528 (=H2724) Kyoto optical observation
  23. GRB 030416: Optical Observations
  24. GRB 030329 Optical Observations
  25. GRB030329: XMM-Newton observation
  26. GRB 021004: HST observations
  27. GRB030324: Further Observations of the Candidate Optical Afterglow
  28. GRB030519B (=H2716): Peak Fluxes, Fluences, and Energy Spectrum
  29. IPN triangulation of GRB030519B=H2716 (small error box)
  30. HETE GRB030329, correction to Rc Observations in Loiano
  31. GRB 030329: Optical limit (contemporaneous imaging)
  32. IPN triangulation of GRB030509 (small errror box)
  33. GRB030329, BVRI photometry
  34. GRB030429, refiend optical brightness
  35. GRB 030329: Optical limit (contemporaneous photography)
  36. GRB030418, BVRcIc field photometry
  37. GRB030429, BVRcIc field photometry
  38. GRB030429 (=H2695): A Long GRB Localized by the HETE WXM and SXC
  39. XRF030416 (=U10897): An X-Ray Flash Localized by the HETE WXM
  40. GRB030329: RTT150 optical observations and upper limit for a host
  41. GRB030501, optical observation
  42. GRB030501 triangulation (correction to GCN 2194)
  43. GRB030329: RTT150 optical observations and upper limit for a host
  44. GRB 030429: redshift from VLT spectroscopy
  45. GRB030501B triangulation (single error box)
  46. GRB 030329, BVRI photometry
  47. GRB030429: Optical Observations
  48. GRB030501: TAROT candidate afterglow present in archival images
  49. GRB 030429: confirmation of afterglow candidate
  50. GRB 030329 Oprical observations in Rozhen observatory
  51. SNeIa AS THE POSSIBLE PROGENITORS OF SHORT-DURATION GRBs.
  52. IPN triangulation of GRB030425 (single error box)
  53. GRB 030329, the review of the sky area in plate archive (1950-1998)
  54. GRB 030329: optical spectropolarimetry at VLT
  55. GRB 030329: wide-field photograph by R. Tamura 1 hr after the burst
  56. GRB030329: optical polarization
  57. IPN triangulation of GRB030422 (two large error boxes)
  58. GRB030329, optical observation
  59. MASTER:optical observations GRB030418
  60. MASTER:optical observations probable GRB030414
  61. GRB030418: Kiso near infrared observations
  62. GRB 030418: Optical afterglow
  63. OT GRB 030329: early UBVRcIc spectral evolution
  64. OT GRB 030329: early spectrum
  65. IPN triangulation of GRB030414 (small error box)
  66. IPN triangulation of GRB030413 (small error box)
  67. Superluminal motion in GRB 030329 (Correction)
  68. Superluminal motion in GRB 030329
  69. GRB030329, optical position
  70. IPN triangulation of GRB030406 (small error box)
  71. IPN triangulation of GRB050403 (small error box)
  72. GRB 030329: BVRI photometry at Asiago
  73. GRB 030329: VLT V-band photometry
  74. Kiso observation of the GRB030329 at April 6
  75. GRB 030329, color evolution
  76. GRB030328, UBVRcIc field photometry
  77. GRB 030329 Optical observations
  78. GRB030329: Kiso B and R band observations
  79. GRB030328: R upper limit after 6 hours by MASTER
  80. SDSS 0.5m PT observations of GRB030329 (correction)
  81. SDSS 0.5m PT observations of GRB030329
  82. GRB030329: final R-band light curve by MASTER
  83. GRB030329, optical observation
  84. GRB030329, new UBVRcIc field photometry
  85. GRB 030329, light curve and SN prediction
  86. GRB 030329, BRI photometry
  87. GRB030328: Full Observation, X-ray Fading and Spectrum Measured
  88. GRB030329: Optical observations at Teramo
  89. GRB 030329: Radio observations at GMRT
  90. Further AAVSO V,B,R observations of GRB030329
  91. GRB 030329: Additional Mt. Laguna Optical Observations
  92. GRB 030329: Observations with ANDICAM
  93. GRB030329: further optical photometry and evidence for a light curve discontinuity
  94. triangulation of GRB 030331 (single error box)
  95. GRB 030329: optical observations
  96. Photometry of GRB030329 - Constant OT Magnitude
  97. GRB030329 - OT brightens
  98. GRB 030329, optical photometry
  99. GRB 030324: Optical and NIR Observations
  100. GRB030329: R band light curve by MASTER

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