SIMBAD references

2000BaltA...9...13O - Baltic Astronomy, 9, 13-22 (2000/January-0)

Asteroseismological constraints on the extent and cause of the pre-white dwarf instability strip.


Abstract (from CDS):

In recent years, Whole Earth Telescope observations led to determination of mass and luminosity for the majority of the GW Vir pulsators. We find that pulsators of low mass have higher luminosity, suggesting the range of instability is highly mass-dependent. The observed trend of decreasing periods with decreasing luminosity matches a decrease in the maximum (standing-wave) g-mode period across the instability strip. We show that the red edge can in fact be caused by the driving period increasing beyond the maximum sustainable period of standing waves.

Abstract Copyright:

Journal keyword(s): stars: stars: interiors, oscillations, white dwrfs - variables: GW Virginis

Simbad objects: 5

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