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PG 1346+082: An interacting binary white dwarf system

  • M. A. Wood
  • D. E. Winget
  • R. E. Nather
  • James Liebert
  • F. Wesemael
  • G. Wegner
Degenerate and Pre-Degenerate Variables
Part of the Lecture Notes in Physics book series (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.

Keywords

Accretion Disk White Dwarf Roche Lobe Instability Strip Orbital Separation 
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.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1987

Authors and Affiliations

  • M. A. Wood
    • 1
  • D. E. Winget
    • 1
  • R. E. Nather
    • 1
  • James Liebert
    • 2
  • F. Wesemael
    • 3
  • G. Wegner
    • 4
  1. 1.Department of Astronomy and McDonald ObservatoryUniversity of Texas at AustinUSA
  2. 2.Department of Astronomy and Steward ObseryatoryUniversity of ArizonaUSA
  3. 3.Département de PhysiqueUniversité de MontréalGermany
  4. 4.Department of Physics and AstronomyDartmouth CollegeUSA

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