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Joint Commission Meeting on UV and X-Ray Observations of Interacting Binary Systems

(Commissions 42 and 44)

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Highlights of Astronomy

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Abstract

Observations of the recetly discovered jet feature in the symbiotic variable R Aquarii (M7e=pec) were obtained with the International Ultraviolet Explorer (IUE). A comaparison of low dispersion UV-spectra reveals important differences between the central ionized source and the jet feature. The UV-continum flux Fλ between 1200-2000A that rises with decreasing wavelegth in the jet feature, essentially is independent with wavelength in the central compact nebula. The prominent emission lines of Si III] λ 1892A amd Si II λ 1817A, evident in the central star, are virtually absent in the jet. The carbon lines of C IV, C III] and C II also suggest the general excitation of the jet is comparatively lower than the central star. This is further indicated by enhanced S II λ 1250, 1295A and C II λ 1335A emission in the feature. We speculate that material that is ejected from the symbiotic system cools through free-free and nebular recombination emission.

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References

  • Bath G.T., and Pringle, J.E.:1982,M.N.R.A.S., in press.

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  • Boyarchuk,“?:lk iiii .A.A.:1982,“The Nature of Symbiotic Stars”, edit. M.Friedjung and R. Viotti (D.Reidel Publishing Co.),pp.225–230.

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  • Nussbaumer,H.:1982,“The Nature of Symbiotic Stars”,ibid.,pp.85–102.

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Author information

Authors and Affiliations

  1. NASA Goddard Space Flight Center, Greeneblt, MD., 20771, USA

    A. G. Michalitsianos

  2. Department of Physics, George Mason University, Fairfax, Virginia, 22030, USA

    M. Kafatos

  3. Observatory and Astrophysics Laboratory, University of Helsinki, Finland

    Osmi Vilhu

  4. Department of Astronomy, University of Southern California, Los Angeles, CA, 90089, USA

    Geraldine J. Peters

  5. Laboratory for Astronomy and Solar Physics, Goddard Space Flight Center, and McDonald Observatory, University of Texas, USA

    Sidney B. Parsons (Guest Observatory, Senior NRC-NASA research Associate)

  6. International Ultraviolet Explorer satellite, USA

    Sidney B. Parsons (Guest Observatory, Senior NRC-NASA research Associate)

  7. Princeton University Observatory, Princeton, N.J., 08544, USA

    R. S. Polidan

  8. Dominion Astrophysical Observatory, Herzberg Institute of Astrophysics, Victoria, B.C., Canada

    J. B. Hutchings

  9. NASA-Goddard Space Flight Center, Greenbelt, MD., USA

    J. F. Dolan, C. J. Crannell, B. R. Dennis, K. J. Frost & L. E. Orwig

  10. Dept. of Astronomy, Univ. of California, Berkeley, CA, USA

    Gibor Basri

  11. Dept. of Physics, New Mexico Tech, Socorro, NM, USA

    David Gibson

  12. JILA, Univ. of Colorado, Boulder, CO, USA

    Fredrick Walter

  13. Laboratory for High Energy Astrophysics, NASA/Goddard Space Flight Center, Greenbelt, Maryland, 20771, USA

    N. E. White & T. R. Kallman

  14. Dept. of Physics and Astronomy, Univ. of Maryland, USA

    N. E. White

  15. MIT, USA

    T. R. Kallman

  16. Department of Astrophysics, Oxford University, USA

    P. A. Charles

  17. Harvard-Smithsonian Center for Astrophysics, USA

    J. Patterson, K. Beuermann, G. Fabbiano, D. Q. Lamb & J. C. Raymond

  18. Max-Planck-Institut für Physik und Astrophysik, München, Germany

    K. Beuermann

  19. Caltech, USA

    K. Horne

  20. NASA/Goddard Space Flight Center, USA

    J. Swank & N. E. White

Authors
  1. A. G. Michalitsianos
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  2. M. Kafatos
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  3. Osmi Vilhu
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  4. Geraldine J. Peters
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  5. Sidney B. Parsons
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  6. R. S. Polidan
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  7. J. B. Hutchings
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  8. J. F. Dolan
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  9. C. J. Crannell
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  10. B. R. Dennis
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  11. K. J. Frost
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  12. L. E. Orwig
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  13. Gibor Basri
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  14. David Gibson
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  15. Fredrick Walter
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  16. N. E. White
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  17. T. R. Kallman
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  18. P. A. Charles
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  19. J. Patterson
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  20. K. Beuermann
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  21. G. Fabbiano
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  22. D. Q. Lamb
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  23. J. C. Raymond
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  24. K. Horne
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  25. J. Swank
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  26. N. E. White
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Editor information

Editors and Affiliations

  1. IAU — UAI Secretariat, 61, Ave. de l’Observatoire, F-75014, Paris, France

    Richard M. West (General Secretary of the Union) (General Secretary of the Union)

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© 1983 International Astronomical Union

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Michalitsianos, A.G. et al. (1983). Joint Commission Meeting on UV and X-Ray Observations of Interacting Binary Systems. In: West, R.M. (eds) Highlights of Astronomy. International Astronomical Union / Union Astronomique Internationale, vol 6. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-7110-3_12

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  • DOI: https://doi.org/10.1007/978-94-009-7110-3_12

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-90-277-1565-4

  • Online ISBN: 978-94-009-7110-3

  • eBook Packages: Springer Book Archive

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