Seismic signature of helium ionization in the Sun and stars
G. Houdek, D.O. Gough
TL;DR
This paper reviews the seismic signature of helium ionization in the Sun and stars, highlighting its importance for asteroseismic diagnostics and summarizing previous findings by Houdek & Gough.
Contribution
It consolidates and illustrates the asteroseismic signature of helium ionization for low-degree p modes in solar-type stars, emphasizing its diagnostic applications.
Findings
Helium ionization leaves a detectable seismic signature in stellar oscillations.
The signature can be used to infer helium abundance in stars.
Applications improve understanding of stellar structure and evolution.
Abstract
We present a summary of an asteroseismic signature of helium ionization reported by Houdek & Gough (2007, 2008, 2009) for low-degree p modes in solar-type stars, and illustrate its applications for asteroseismic diagnoses.
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Taxonomy
TopicsStellar, planetary, and galactic studies · Astro and Planetary Science · Astronomy and Astrophysical Research