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The 1989 outburst of V404 cygni: A very unusual x-ray nova

  • R. M. Wagner
  • S. Starrfield
  • A. Cassatella
  • R. Gonzalez-Riestra
  • T. J. Kreidl
  • S. B. Howell
  • R. M. Hjellming
  • X. -H. Han
  • G. Sonneborn
  • G. W. Collins
  • R. Bertram
  • M. W. Buie
  • J. Johnson
  • T. Harrison
  • R. D. Gehrz
  • F. A. Córdova
  • P. Szkody
  • B. Margon
  • J. MacDonald
  • R. Fried
  • C. Shrader
  • H. E. Bond
4 - Related Objects Posters
Part of the Lecture Notes in Physics book series (LNP, volume 369)

Abstract

On May 22, 1989 the Japanese Ginga Team discovered a new X-ray source that was cataloged as GS 2023+338. This source was subsequently identified as coincident in position with a previously known nova cataloged as V404 Cygni. Its last recorded outburst was in 1938 when it rose to about 12th mag. Spectroscopic data were obtained and confirmed the nature of the outburst. Additional ground based data were obtained by us at CTIO and the VLA. The X-ray behavior of this object has been reported to be very unusual and it reached a peak of about 17 crab about one week after discovery. Since then it has varied widely in magnitude at all wavelengths at which it has been studied. We present a brief summary of the observations that have been obtained up to the time of the meeting and shortly thereafter.

Keywords

Light Curve Spectroscopic Data Alamos National Laboratory Weak Continuum Minute Exposure 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Copyright information

© Springer-Verlag 1990

Authors and Affiliations

  • R. M. Wagner
    • 1
  • S. Starrfield
    • 2
  • A. Cassatella
    • 3
  • R. Gonzalez-Riestra
    • 3
  • T. J. Kreidl
    • 4
  • S. B. Howell
    • 5
  • R. M. Hjellming
    • 6
  • X. -H. Han
    • 6
  • G. Sonneborn
    • 8
  • G. W. Collins
    • 9
  • R. Bertram
    • 9
  • M. W. Buie
    • 10
  • J. Johnson
    • 11
  • T. Harrison
    • 11
  • R. D. Gehrz
    • 11
  • F. A. Córdova
    • 12
  • P. Szkody
    • 13
  • B. Margon
    • 13
  • J. MacDonald
    • 14
  • R. Fried
    • 15
  • C. Shrader
    • 7
  • H. E. Bond
    • 10
  1. 1.Department of AstronomyThe Ohio State UniversityUSA
  2. 2.IGPP and Theoretical Division, Los Alamos National Laboratory and Department of Physics and AstronomyArizona State UniversityUSA
  3. 3.ESA IUE ObservatoryVILSPAUSA
  4. 4.Lowell ObservatoryUSA
  5. 5.Planetary Science InstituteUSA
  6. 6.National Radio Astronomy ObservatoryUSA
  7. 7.IUE ObservatoryGoddard Space Flight CenterUSA
  8. 8.Laboratory for Astronomy and Solar PhysicsGoddard Space Flight CenterUSA
  9. 9.Department of AstronomyThe Ohio State UniversityUSA
  10. 10.Space Telescope Science InstituteUSA
  11. 11.School of Physics and AstronomyUniversity of MinnesotaUSA
  12. 12.Earth and Space Sciences DivisionLos Alamos National LaboratoryUSA
  13. 13.Department of AstronomyUniversity of WashingtonUSA
  14. 14.Department of Physics and AstronomyUniversity of DelawareUSA
  15. 15.Braeside ObservatoryUSA

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