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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').
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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"

24583 results found.

  1. LIGO/Virgo G277583: DLT40 follow-up observation
  2. Konus-Wind observation of GRB 170409A
  3. GRB 170409A: Fermi GBM Observation
  4. GRB 170409A: Fermi-LAT detection
  5. GRB 170405A: SMARTS optical/IR afterglow observations
  6. GRB 170403B CALET Gamma-Ray Burst Monitor detection
  7. GRB 170405A, Swift-BAT refined analysis
  8. GRB 170405A: Swift-XRT refined Analysis
  9. Konus-Wind observation of GRB 170405A
  10. GRB 170405A: LCO FTN observations
  11. GRB 170405A: Watcher optical detection
  12. GRB 170405A: NOT optical observations
  13. GRB 170405A: Fermi-LAT detection
  14. GRB 170405A: Fermi GBM observation
  15. LIGO/Virgo G275697: Update on significance from offline analyses
  16. LIGO/Virgo G275404: Update on significance from offline analyses
  17. LIGO/Virgo G275404: European VLBI Network (EVN) follow-up of the near-IR transient in the AGL J1914+1043 field
  18. GRB 170402A CALET Gamma-Ray Burst Monitor detection
  19. GRB 170330A CALET Gamma-Ray Burst Monitor detection
  20. Konus-Wind observation of GRB 170403A (short/hard)
  21. IPN Triangulation of GRB 170403A (short)
  22. GRB 170403A: Fermi GBM observation
  23. Konus-Wind observation of GRB 170330A
  24. IceCube-170321A: Konus-Wind upper limits
  25. Swift Trigger 745090 is a noise trigger near NGC 5195
  26. Fermi-LAT Gamma-ray Observations of IceCube-170321
  27. Swift triggered on SAX J1806.5-221
  28. GRB 170330A: AstroSat CZTI detection
  29. GRB 170330A: Swift-BAT refined analysis
  30. GRB 170331A: Swift-BAT refined analysis
  31. IceCube-170321A: Swift-XRT observations
  32. GRB 170330A: LCO Cerro Tololo observations
  33. LIGO/Virgo G275697: LOFAR follow-up
  34. Konus-Wind observation of GRB 170329A
  35. IBAS trigger 7789 is not a GRB
  36. Fermi trigger 512347439/GRB 170327A: MASTER-SAAO possible OT detection
  37. GRB 170329A: Fermi GBM detection
  38. GRB 170329A: Fermi-LAT detection
  39. GRB 170325B: POLAR Observation
  40. GRB 170325A: Fermi GBM observation
  41. LIGO/Virgo G277583: Konus-Wind observations
  42. GRB 170325A, Swift-BAT detection of a short GRB
  43. INTEGRAL pointed follow-up of IceCube-170321A
  44. LIGO/Virgo G277583: Fermi GBM Observations
  45. Konus-Wind observation of GRB 170320A
  46. GRB 170320A: POLAR Observation
  47. LIGO/Virgo G277583: INTEGRAL search for an X-ray and gamma-ray counterpart
  48. Fermi GBM Observation of IceCube-170321A
  49. IceCube-170321A - IceCube observation of a high-energy neutrino candidate event
  50. INTEGRAL SPI-ACS observation of AMON IceCube EHE 80305071 129307
  51. IPN Triangulation of GRB 170320A (long/intense)
  52. Search for counterpart to IceCube-170321A with ANTARES
  53. GRB 170318A: KAIT Optical Upper Limit
  54. GRB 170318B: Swift-BAT refined analysis
  55. LIGO/Virgo G277583: CALET Observations
  56. GRB 170318B: Fermi GBM observation
  57. GRB 170318A: Swift-BAT refined analysis
  58. IceCube-170312A: MASTER follow-up observations
  59. LIGO/Virgo G277583: Asiago spectroscopic classification of ATLAS17byo and ATLAS17cgg
  60. GRB 170317A: LCO FTN observations
  61. LIGO/Virgo G277583 : MAXI/GSC observations
  62. GRB 170317A: MITSuME Okayama Optical Observation
  63. GRB 170317A: Swift-BAT refined analysis
  64. LIGO/Virgo G277583: AstroSat CZTI upper limits
  65. GRB 170317A: MITSuME Okayama Ks-band upper-limit
  66. GRB 170317A : Xinglong TNT optical observation
  67. LIGO/Virgo G277583: Swift/BAT data search
  68. LIGO/Virgo G277583: Discovery Channel Telescope Follow-Up of ATLAS17cck
  69. LIGO/Virgo G277583: ATLAS coverage and transients over the first 2 days
  70. LIGO/Virgo G277583: ATLAS17cck is likely a minor planet
  71. LIGO/Virgo G275697: DLT40 follow-up observation
  72. LIGO/Virgo G274296: DLT40 follow-up observation
  73. LIGO/Virgo G275697: Fermi-LAT search for a high-energy gamma-ray counterpart
  74. GRB 170311B: AstroSat CZTI detection
  75. LIGO/Virgo G277583: SVOM/Mini-GWAC observations of the initial skymap
  76. LIGO/Virgo G275404: Medicina radio follow-up of near-infrared
  77. LIGO/Virgo G277583: INTEGRAL was inactive at the time of the event
  78. LIGO/Virgo G277583 ANTARES search
  79. Konus-Wind observation of GRB 170311B
  80. LIGO/Virgo G277583: AGILE GRID observations
  81. LIGO/Virgo G277583: AGILE MCAL observations
  82. LIGO/Virgo G270580: optical observations and classification of PS and MASTER sources
  83. LIGO/Virgo G277583: IceCube neutrino observations
  84. LIGO/Virgo G277583: Identification of a GW Burst Candidate
  85. IPN Triangulation of GRB 170311B (long/very intense)
  86. IceCube-170312A - IceCube update on a high-energy neutrino candidate event
  87. INTEGRAL observation of IceCube HESE 65274589 129281
  88. GRB 170311A: Swift-BAT refined analysis
  89. SN MASTER OT J042250.16-820415.4 is the possible optical counterpart of the gravitational waves event LIGO/Virgo G274296
  90. GRB 170311A: MASTER-OAFA early optical observations
  91. GRB 170309A: POLAR Observation
  92. GRB 170306A: GROND afterglow detection
  93. LIGO/Virgo G275404: Updated localization from LIGO data
  94. GRB 170307A (trigger 741528): Swift-BAT refined analysis
  95. Swift trigger 741567: MASTER red star flare detection
  96. GRB 170307A: Fermi GBM observation
  97. LIGO/Virgo G275404 and AGL J1914+1043: INTEGRAL follow-up
  98. LIGO/Virgo G275697: Updated localization from LIGO data
  99. Swift Trigger 741528: a possible GRB
  100. Konus-Wind observation of GRB 170306B

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