Pulsational instability of high-luminosity H-rich pre-white dwarf star

We present a pulsational stability analysis on high-luminosity H-rich (DA) white dwarf models evolved from low-metallicity progenitors. We found that the ε mechanism due to H-shell burning is able to excite low-order g modes.

Bibliographic Details
Main Authors: Calcaferro Leila M., Córsico Alejandro H., Camisassa María E., Althaus Leandro G., Shibahashi Hiromoto
Format: Article
Language:English
Published: EDP Sciences 2017-01-01
Series:EPJ Web of Conferences
Online Access:https://doi.org/10.1051/epjconf/201715206012
Description
Summary:We present a pulsational stability analysis on high-luminosity H-rich (DA) white dwarf models evolved from low-metallicity progenitors. We found that the ε mechanism due to H-shell burning is able to excite low-order g modes.
ISSN:2100-014X