SIMBAD references

1998A&A...331..162P - Astronomy and Astrophysics, volume 331, 162-166 (1998/3-1)

On the inclination and binarity of the pulsating pre-white dwarf PG 2131+066.


Abstract (from CDS):

We report on new spectroscopic data as well as recent results from a temporal analysis of PG 2131+066 WET time series, yielding a new interpretation of the binarity nature for PG 2131+066. The newly discovered Hα emission features, the estimated low inclination and the found 3.9h period, support the picture of a close binary system, composed of the nonradial oscillating white dwarf with a cool red dwarf companion. Since the spin and the orbital period are not yet synchronized and because PG 2131+066 has no X-ray counterpart, we classify it as a progenitor of a cataclysmic variable.

Abstract Copyright:

Journal keyword(s): stars: binaries: close - oscillations - white dwarfs - individual: PG 2131+066

Simbad objects: 2

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