| Issue |
EPJ Web of Conferences
Volume 43, 2013
40th Liège International Astrophysical Colloquium. Ageing Low Mass Stars: From Red Giants to White Dwarfs
|
|
|---|---|---|
| Article Number | 05005 | |
| Number of page(s) | 10 | |
| Section | White Dwarfs | |
| DOI | https://doi.org/10.1051/epjconf/20134305005 | |
| Published online | 21 March 2013 | |
https://doi.org/10.1051/epjconf/20134305005
Pulsations in white dwarfs: Selected topics
Astronomical Institute, Faculty of Science, Tohoku University, Sendai, Japan
a e-mail: saio@astr.tohoku.ac.jp
This paper presents a very brief overview of the observed properties of g-mode pulsations in variable white dwarfs. We then discuss a few selected topics: Excitation mechanisms (kappa- and convection- mechanisms), and briefly the effect of a strong magnetic field (∼ 1 MG) on g-modes as recently found in a hot DQ (carbon-rich atmosphere) white dwarf. In the discussion of excitation mechanisms, a simple interpretation for the convection mechanism is given.
© Owned by the authors, published by EDP Sciences, 2013
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