TL;DR
This paper reviews various mechanisms causing brightness variations in white dwarf stars, emphasizing pulsations as a key tool for probing their internal structures.
Contribution
It provides a comprehensive summary of the main types of white dwarf variability and highlights the significance of pulsations for interior studies.
Findings
Stellar pulsations are the most complex and informative variability type.
White dwarf variability includes pulsations, rotation, and tidal distortions.
Pulsations offer insights into white dwarf interior conditions.
Abstract
There are a few different mechanisms that can cause white dwarf stars to vary in brightness, providing opportunities to probe the physics, structures, and formation of these compact stellar remnants. The observational characteristics of the three most common types of white dwarf variability are summarized: stellar pulsations, rotation, and ellipsoidal variations from tidal distortion in binary systems. Stellar pulsations are emphasized as the most complex type of variability, which also has the greatest potential to reveal the conditions of white dwarf interiors.
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Taxonomy
TopicsStellar, planetary, and galactic studies · Astronomy and Astrophysical Research · Educational Leadership and Practices