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Stellar Pulsation pp 348–351Cite as

PG 1346+082: An interacting binary white dwarf system

  • Degenerate and Pre-Degenerate Variables
  • Conference paper
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Part of the book series: Lecture Notes in Physics ((LNP,volume 274))

Abstract

PG 1346+082 is both a photometric and a spectroscopic variable, spanning the B-magnitude range 13.6-17.2. High-speed photometric data reveal rapid flickering in the low-state light curve. The system also shows spectroscopic variations, displaying broad, shallow He I absorption lines at maximum light, and a weak emission feature at He I 4471A at minimum light. Hydrogen lines are conspicuous by their absence.

We conclude that PG 1346+082 is an interacting binary white dwarf system. Furthermore, because continuum fits to IUE high-state data suggest temperatures consistent with membership in the DB white dwarf instability strip, we suggest that some of the photometric variations we observe may arise from pulsations.

Alfred P. Sloan Research Fellow

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References

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Author information

Authors and Affiliations

  1. Department of Astronomy and McDonald Observatory, University of Texas at Austin, USA

    M. A. Wood, D. E. Winget & R. E. Nather

  2. Department of Astronomy and Steward Obseryatory, University of Arizona, USA

    James Liebert

  3. Département de Physique, Université de Montréal, Germany

    F. Wesemael

  4. Department of Physics and Astronomy, Dartmouth College, USA

    G. Wegner

Authors
  1. M. A. Wood
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  2. D. E. Winget
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  3. R. E. Nather
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  4. James Liebert
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  5. F. Wesemael
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  6. G. Wegner
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Editor information

A. N. Cox W. M. Sparks S. G. Starrfield

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© 1987 Springer-Verlag Berlin Heidelberg

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Wood, M.A., Winget, D.E., Nather, R.E., Liebert, J., Wesemael, F., Wegner, G. (1987). PG 1346+082: An interacting binary white dwarf system. In: Cox, A.N., Sparks, W.M., Starrfield, S.G. (eds) Stellar Pulsation. Lecture Notes in Physics, vol 274. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-17668-3_233

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  • DOI: https://doi.org/10.1007/3-540-17668-3_233

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-17668-8

  • Online ISBN: 978-3-540-47754-9

  • eBook Packages: Springer Book Archive

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