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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.

"N/A_MC161217_R1" does not adhere to advanced search syntax. Please refer to the documentation and try again.
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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subject:"Swift"
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submitter:"Judith Racusin"

10961 results found.

  1. IPN triangulation of GRB030926 (short/hard; large error box)
  2. XRF030824 (=H2821): An X-Ray Flash Localized by the HETE WXM
  3. XRF030823 (=H2818): An X-Ray Flash Localized by the HETE WXM and SXC
  4. GRB030913: Subaru Optical Observations
  5. GRB030913: OT's limit by MASTER
  6. GRB030913 (=H2849): Confirmation of the Flight Localization
  7. Magellan Observations of GRB030725 (=H2779)
  8. GRB030913 (=H2849): A GRB Possibly Localized by HETE
  9. IPN triangulation of GRB030822 (annulus)
  10. GRB030823: optical observation at Tokyo Tech
  11. IPN triangulation of GRB030821 (=H2814; refined error box)
  12. GRB 030821(=H2814): A Faint, Long GRB Localized by the HETE WXM and the IPN
  13. Summary of recent IPN and HETE detections of SGR bursts
  14. IPN triangulation of GRB030814 (annulus)
  15. 030813 SGR event (Konus-Wind observation)
  16. SGR 1808-20 (=H2802): A Possible new SGR
  17. XRF030723(=H2777): Chandra Fading X-ray Afterglow Confirmed
  18. IPN/HETE summary of recent bursts from SGR1806-20
  19. XRF030723: Re-analysis of ROTSE-III early images
  20. IPN triangulation of GRB030725 (=H2779; small error box)
  21. XRF030723 (=H2777): Second Epoch Magellan Observations
  22. IPN triangulation of GRB030726 (large error box)
  23. XRF 030723: confirmation of fading optical counterpart
  24. XRF030723(=H2777): Chandra Observations
  25. Magellan Observations of XRF030723 (=H2777)
  26. GRB030723: Upper limits from historical observations
  27. GRB030725, possible optical transient
  28. GRB030725 (=H2779): A Bright GRB Localized by HETE
  29. XRF030723 (= H2777): Chandra Observations Scheduled
  30. XRF030723 (=H2777): An X-ray Flash Localized by the HETE WXM and
  31. H2768, H2770, and H2771: Three Bursts from SGR1806-20
  32. GRB030329: RTT150 optical observations
  33. IPN detection of renewed activity from SGR1806-20
  34. HETE detection of burst from SGR1806-20
  35. GRB030528(=H2724): X-ray Afterglow Identified in Second Epoch
  36. GRB 030528: Optical Observations
  37. GRB030528(=H2724): Observations with the Chandra X-ray Observatory
  38. GRB030528: Chandra TOO Planned
  39. GRB030528(=H2724): Revised SXC Localization
  40. GRB 030329: optical observations
  41. GRB030528 (H2724): A long GRB localized by HETE
  42. GRB 030329: HST ACS Observations of the Host
  43. GRB 030329 Optical Observations
  44. GRB030324: Further Observations of the Candidate Optical Afterglow
  45. GRB030519B (=H2716): Peak Fluxes, Fluences, and Energy Spectrum
  46. IPN triangulation of GRB030519B=H2716 (small error box)
  47. GRB 030418: Second Epoch Optical Observations with Magellan
  48. GRB030519B (=H2716): A Long, Bright GRB Localized by the HETE WXM
  49. IPN triangulation of GRB030519 (annulus)
  50. IPN triangulation of GRB030518A (annulus)
  51. GRB030329: RTT150 optical observations
  52. GRB 030329: Optical limit (contemporaneous photography)
  53. GRB030429: RTT150 optical obs., correction to GCN 2208
  54. GRB 030329: High-Resolution Spectroscopy of the Host
  55. GRB030429 (=H2695): A Long GRB Localized by the HETE WXM and SXC
  56. GRB030418 (=H2686): A Long, X-Ray-Rich GRB Localized by the HETE WXM
  57. XRF030416 (=U10897): An X-Ray Flash Localized by the HETE WXM
  58. GRB030429: RTT150 optical observations, a possible host galaxy
  59. GRB030329: RTT150 optical observations and upper limit for a host
  60. GRB030329: RTT150 optical observations and upper limit for a host
  61. GRB 030429: IR photometry with IRSF/SIRIUS
  62. GRB 030329, the review of the sky area in plate archive (1950-1998)
  63. Optical Observations of GRB 030418 with Magellan
  64. GRB 030329: optical spectropolarimetry at VLT
  65. GRB030329: 444 AAVSO Measurements
  66. GRB030418: Upper limits from recent and historical observations.
  67. GRB 030418: Optical afterglow candidate
  68. GRB030329: VR Photometry at TNG
  69. GRB030324: Candidate Optical Afterglow
  70. GRB 030413: Optical Observations
  71. IPN triangulation of GRB030413 (small error box)
  72. IPN triangulation of GRB050403 (small error box)
  73. IPN triangulation of GRB030403 (annulus)
  74. GRB 030329: BVRI photometry at Asiago
  75. GRB 030329: VLT V-band photometry
  76. GRB 030329: Supernova Confirmed
  77. GRB030329: RTT150 optical observations
  78. GRB030329: RTT150 optical observations
  79. GRB 030329: Supernova Spectrum Emerging
  80. GRB030329: RTT150 optical observation
  81. GRB 030329, Optical observations
  82. GRB030329: final R-band light curve by MASTER
  83. GRB030329 Radio 23/43/90 GHz observations at Nobeyama
  84. GRB030329: optical observations at Tokyo Tech
  85. GRB 030329: optical observations
  86. GRB030328: Full Observation, X-ray Fading and Spectrum Measured
  87. GRB030329: Optical observations at Teramo
  88. GRB 030329: beginning of the new fading phase in optical band
  89. GRB 030329, optical spectroscopy
  90. GRB 030329: optical photometry
  91. GRB 030329: further optical observations
  92. GRB030329: R and B observations
  93. GRB030328: X-ray Fading and Spectrum Measured with Chandra
  94. GRB 030329: Light curve observed during the change of its slope.
  95. GRB 030329: Optical Decay
  96. GRB030329: optical spectroscopy with the TNG
  97. GRB030328: X-ray Afterglow Observed with Chandra
  98. GRB 030329: optical observations
  99. GRB030329: Upper limits from recent and historical observations.
  100. GRB030329 (=H2652): A Long, Extremely Bright GRB Localized by the HETE WXM and SXC

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