C.D.S. - SIMBAD4 rel 1.7 - 2020.10.31CET12:45:35

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

goto View the reference in ADS

Number of rows : 2

N Identifier Otype ICRS (J2000)
ICRS (J2000)
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
1 PG 0122+200 WD* 01 25 22.5118179721 +20 17 56.963251283   16.2   16.9   DOZ.7 102 0
2 V* IR Peg WD* 21 34 08.2124719240 +06 50 57.662044329   16.15       PG1159 112 0

    Equat.    Gal    SGal    Ecl

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