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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_MC151008_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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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"

10936 results found.

  1. GRB030723: Upper limits from historical observations
  2. GRB030725, possible optical transient
  3. GRB030725 (=H2779): A Bright GRB Localized by HETE
  4. XRF030723 (= H2777): Chandra Observations Scheduled
  5. XRF030723 (=H2777): An X-ray Flash Localized by the HETE WXM and
  6. H2768, H2770, and H2771: Three Bursts from SGR1806-20
  7. GRB030329: RTT150 optical observations
  8. IPN detection of renewed activity from SGR1806-20
  9. HETE detection of burst from SGR1806-20
  10. GRB030528(=H2724): X-ray Afterglow Identified in Second Epoch
  11. GRB 030528: Optical Observations
  12. GRB030528(=H2724): Observations with the Chandra X-ray Observatory
  13. GRB030528: Chandra TOO Planned
  14. GRB030528(=H2724): Revised SXC Localization
  15. GRB 030329: optical observations
  16. GRB030528 (H2724): A long GRB localized by HETE
  17. GRB 030329: HST ACS Observations of the Host
  18. GRB 030329 Optical Observations
  19. GRB030324: Further Observations of the Candidate Optical Afterglow
  20. GRB030519B (=H2716): Peak Fluxes, Fluences, and Energy Spectrum
  21. IPN triangulation of GRB030519B=H2716 (small error box)
  22. GRB 030418: Second Epoch Optical Observations with Magellan
  23. GRB030519B (=H2716): A Long, Bright GRB Localized by the HETE WXM
  24. IPN triangulation of GRB030519 (annulus)
  25. IPN triangulation of GRB030518A (annulus)
  26. GRB030329: RTT150 optical observations
  27. GRB 030329: Optical limit (contemporaneous photography)
  28. GRB030429: RTT150 optical obs., correction to GCN 2208
  29. GRB 030329: High-Resolution Spectroscopy of the Host
  30. GRB030429 (=H2695): A Long GRB Localized by the HETE WXM and SXC
  31. GRB030418 (=H2686): A Long, X-Ray-Rich GRB Localized by the HETE WXM
  32. XRF030416 (=U10897): An X-Ray Flash Localized by the HETE WXM
  33. GRB030429: RTT150 optical observations, a possible host galaxy
  34. GRB030329: RTT150 optical observations and upper limit for a host
  35. GRB030329: RTT150 optical observations and upper limit for a host
  36. GRB 030429: IR photometry with IRSF/SIRIUS
  37. GRB 030329, the review of the sky area in plate archive (1950-1998)
  38. Optical Observations of GRB 030418 with Magellan
  39. GRB 030329: optical spectropolarimetry at VLT
  40. GRB030329: 444 AAVSO Measurements
  41. GRB030418: Upper limits from recent and historical observations.
  42. GRB 030418: Optical afterglow candidate
  43. GRB030329: VR Photometry at TNG
  44. GRB030324: Candidate Optical Afterglow
  45. GRB 030413: Optical Observations
  46. IPN triangulation of GRB030413 (small error box)
  47. IPN triangulation of GRB050403 (small error box)
  48. IPN triangulation of GRB030403 (annulus)
  49. GRB 030329: BVRI photometry at Asiago
  50. GRB 030329: VLT V-band photometry
  51. GRB 030329: Supernova Confirmed
  52. GRB030329: RTT150 optical observations
  53. GRB030329: RTT150 optical observations
  54. GRB 030329: Supernova Spectrum Emerging
  55. GRB030329: RTT150 optical observation
  56. GRB 030329, Optical observations
  57. GRB030329: final R-band light curve by MASTER
  58. GRB030329 Radio 23/43/90 GHz observations at Nobeyama
  59. GRB030329: optical observations at Tokyo Tech
  60. GRB 030329: optical observations
  61. GRB030328: Full Observation, X-ray Fading and Spectrum Measured
  62. GRB030329: Optical observations at Teramo
  63. GRB 030329: beginning of the new fading phase in optical band
  64. GRB 030329, optical spectroscopy
  65. GRB 030329: optical photometry
  66. GRB 030329: further optical observations
  67. GRB030329: R and B observations
  68. GRB030328: X-ray Fading and Spectrum Measured with Chandra
  69. GRB 030329: Light curve observed during the change of its slope.
  70. GRB 030329: Optical Decay
  71. GRB030329: optical spectroscopy with the TNG
  72. GRB030328: X-ray Afterglow Observed with Chandra
  73. GRB 030329: optical observations
  74. GRB030329: Upper limits from recent and historical observations.
  75. GRB030329 (=H2652): A Long, Extremely Bright GRB Localized by the HETE WXM and SXC
  76. GRB 030328: optical observations
  77. GRB030328: optical spectroscopy at TNG
  78. GRB030328: optical photometry at the TNG
  79. GRB030328 (=H2650): A Long, Bright GRB Localized by the HETE WXM and SXC
  80. Re: GRB 030328: Finding chart
  81. GRB030324, optical observations
  82. GRB030323: Upper limits from recent and historical observations.
  83. GRB030323 (=H2640): A Faint, Long GRB Localized by the HETE WXM and SXC
  84. GRB030324 (=H2641): A Long GRB Localized in Real Time by the HETE WXM
  85. GRB030324 (=H2641): A Long GRB Localized in Real Time by the HETE WXM
  86. GRB 030324, optical observations
  87. IPN triangulation of GRB030320B (annulus)
  88. GRB030226, addendum to GCN 1892
  89. IPN upper limit to a GRB associated with SN2003L
  90. IPN triangulation of GRB030317 (annulus)
  91. IPN triangulation of GRB030307 (annulus)
  92. GRB030226: Optical observations at Asiago
  93. GRB 030227: Optical observations
  94. IPN triangulation of GRB030301 (annulus)
  95. 030302: NOT A GRB
  96. 030228: NOT A GRB
  97. GRB 030226: R band polarimetric observations
  98. GRB 20030226: Upper limits from recent and historical observations
  99. GRB030227 - faint tentative OT candidate
  100. XMM-Newton observation of GRB030227

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