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UV Time-Dependent Emission in SY Muscae

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The Nature of Symbiotic Stars

Part of the book series: Astrophysics and Space Science Library ((ASSL,volume 95))

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Abstract

Ultraviolet spectra acquired with the International Ultraviolet Explorer (IUE) of SY Mus = HD 10036 on 20 September 1980 and 11 June 1981 indicate a substantial enhancement of UV emission over a nine month period. The general UV flux level appears to have increased by approximately one order of magnitude between the first and second observing epochs. The strong ultraviolet continuum evident throughout the entire IUE spectral range λλ1200–3200 A on 11 June 1981 is closely approximated by a star with Teff = 40,000 K, where previously on 20 September 1980 the continuum distribution presented a more complex structure that is possibly explained by a combination of thermal emission from an early type main sequence star, and nebular recombination emission (Michalitsianos et al. 198l).

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References

  • Altamore, A., Baratta, G.B., Cassatella, A., Freidjung, M., Giangrande, A., Ricciardi, O. and Viotti, R. 1981, Astrophys. J., 245, p. 630.

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Author information

Authors and Affiliations

  1. NASA Goddard Space Flight Center, Greenbelt, Md, 20771, USA

    A. G. Michalitsianos

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

    M. Kafatos

Authors
  1. A. G. Michalitsianos
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  2. M. Kafatos
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Editor information

Editors and Affiliations

  1. Institut d’Astrophysique (CNRS), Paris, France

    Michael Friedjung

  2. Istituto Astrofisica Spaziale (CNR), Frascati, Italy

    Roberto Viotti

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© 1982 D. Reidel Publishing Company, Dordrecht, Holland

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Michalitsianos, A.G., Kafatos, M. (1982). UV Time-Dependent Emission in SY Muscae. In: Friedjung, M., Viotti, R. (eds) The Nature of Symbiotic Stars. Astrophysics and Space Science Library, vol 95. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-7834-8_34

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  • DOI: https://doi.org/10.1007/978-94-009-7834-8_34

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-94-009-7836-2

  • Online ISBN: 978-94-009-7834-8

  • eBook Packages: Springer Book Archive

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