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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"

15380 results found.

  1. GRB 110328/Swift J164449.3+573451: Chandra observations
  2. GRB 110402A: LOAO Optical Observation
  3. GRB 110402A: Konus-Wind spectral lags and detailed energetics
  4. GRB 110402A: Fermi GBM detection
  5. GRB 110402A: optical observations in Mondy
  6. GRB 110328A / Swift J164449.3+573451: Keck/DEIMOS Optical Spectroscopy
  7. GRB 110402A: MITSuME Okayama and Ishigakijima Optical upper limits
  8. Konus-Wind observation of GRB 110402A
  9. GRB 110328A: Konkoly observations.
  10. GRB110328A/Swift J164449.3+573451: Fermi LAT Observations
  11. GRB 110402A: PAIRITEL NIR Upper Limits
  12. GRB 110402A: NOT afterglow confirmation
  13. GRB 110328A / Swift J164449.3+573451: KASINICS NIR Observation
  14. GRB 110328A / Swift J164449.3+57345: Correction to GCN 11850
  15. GRB 110328/Swift J164449.3+573451: Fermi observations
  16. GRB 110328A / Swift J164449.3+573451: KASINICS K-band Observation
  17. GRB 110328A / Swift J164449.3+573451
  18. GRB 110328A / Swift J164449.3+573451: X-ray analysis and a mini-blazar analogy
  19. GRB 110328A / Swift J164449.3+573451: Gemini and UKIRT IR observations
  20. GRB 110328A / Swift J164449.3+573451: PAIRITEL NIR Detection in 2nd Epoch
  21. GRB 110328A / Swift J164449.3+573451: No optical variability of the optical counterpart
  22. GRB 110328A / Swift J164449.3+573451: BAT refined analysis
  23. GRB 110328A / Swift J164449.3+573451: Konkoly observations
  24. GRB 110328A / Swift J164449.3+573451: PAIRITEL NIR Upper Limits
  25. GRB 110328B: Fermi-LAT Detection
  26. GRB 110328A / Swift J164449.3+573451: optical spectroscopy from GTC
  27. GRB 110328B: Fermi GBM detection
  28. GRB 110328A / Swift J164449.3+573451: NOT optical observations.
  29. GRB 110328A / Swift J164449.3+573451: PTF Quiescent Optical Counterpart
  30. GRB 110328A: a second trigger, probably a hard X-ray transient (Swift J164449.3+573451)
  31. GRB 110319B Swift-XRT afterglow confirmation
  32. GRB 101225A: revised analysis of narrow band imaging
  33. GRB 110318A: Fermi GBM detection
  34. GRB 110305A: REM detection of a possible NIR afterglow
  35. GRB110305A: MITSuME Ishigakijima Optical upper limits
  36. GRB 110305A: GROND Detection of Optical Afterglow
  37. GRB 110223A: optical upper limits
  38. No IPN GRB detected in conjunction with candidate GRB 110215
  39. IBAS distribution of coordinates for low significance INTEGRAL GRB triggers
  40. GRB 110223B: GROND Detection of Optical Afterglow Candidate
  41. GRB110213B: X-ray afterglow confirmation
  42. Fermi GBM detection of an SGR-like burst
  43. Swift XRT and UVOT Observations of OT 110215
  44. GRB 110213B: GROND observations of the optical/NIR afterglow
  45. GRB 110213B: Gemini South Redshift
  46. GRB 110213B: P60 Optical Afterglow Candidate
  47. GRB110213A: RAPTOR Early Optical Peak and Plateau Measurements
  48. GRB 110213A: Fermi GBM observation
  49. GRB 110213B: Swift XRT observation
  50. GRB 110213A: MITSuME Akeno Optical Observation
  51. Konus-Wind observation of GRB 110213A
  52. GRB110213A: MITSuME Okayama Optical Observation
  53. GRB 110213A: Swift/UVOT refined analysis
  54. GRB 110213A: KAIT observations
  55. Konus-Wind observation of GRB 110205A (correction to GCN 11659)
  56. GRB 110207A: Suzaku WAM observation of the prompt emission
  57. GRB 110210A: optical upper limit
  58. GRB 110205A: Swift/BAT and Suzaku/WAM joint spectral analysis
  59. GRB 110206A: Swift-XRT confirmation of the X-ray afterglow
  60. GRB 110205A: Suzaku WAM observation of the prompt emission
  61. GRB 110205A: optical observations in Mondy observatory
  62. GRB 110207A: Fermi GBM observation
  63. GRB 110205A - Continued PAIRITEL NIR Observations
  64. GRB 110207A: MASTER prompt and early optical observations
  65. Konus-Wind observation of GRB 110205A
  66. GRB110205A: MITSuME Ishigakijima Optical Observation
  67. GRB110205A: MITSuME Okayama Optical Observation
  68. GRB 110205A: Swift/UVOT Continuing Observations
  69. GRB 110205A: Newcastle Observatory Optical Observations
  70. GRB 101225A is likely at z~0
  71. GRB 110205A: FAST Redshift
  72. GRB 110205A: PAIRITEL NIR Afterglow Detection
  73. GRB 110205A: Possible Lick/Kast redshift
  74. GRB 110205A: Swift/UVOT Confirmation of Flaring Afterglow
  75. GRB 110205A: Liverpool Telescope Afterglow Confirmation
  76. GRB110112B: EVLA Observations
  77. GRB110128A: MITSuME Okayama optical upper limits
  78. GRB 101112A: Maidanak and CrAO optical observations
  79. GRB110128A: TNG NIR observations
  80. GRB 110128A: TAROT-Calern refined analysis
  81. GRB 110120A: Suzaku WAM observation of the prompt emission
  82. GRB 110128A: WHT redshifts of nearby field galaxies
  83. Konus-Wind observation of GRB 110120A
  84. GRB 110120A: MASTER optical observations
  85. GRB 110120A: Fermi LAT detection
  86. GRB 101225A: CQUEAN optical observation
  87. GRB 110120A: Fermi GBM detection
  88. GRB 110119A: Suzaku WAM observation of the prompt emission
  89. GRB 110120A: MASTER optical observations
  90. GRB110119A: MITSuME Okayama optical upper limits
  91. GRB 110119A: PAIRITEL NIR Afterglow Detection
  92. GRB 101219B: tentative redshift and spectroscopic supernova detection
  93. New feature in Fermi GBM GRB Ground Position Notices
  94. GRB 110112B: Fermi GBM observation
  95. GRB 110112A: MITSuME Akeno and Okayama optical upper limits
  96. GRB 101225A: Redshift retraction and results of additional photometric follow-up at the NOT
  97. Short GRB 110106A: MASTER OT observations
  98. GRB 110106B: Gemini-North / WHT detection of a fading afterglow
  99. GRB 110106A: TNG redshift of the closeby galaxy
  100. GRB 101225A: Keck redshift

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