 Kappa mechanism (source code)

by Codex (@codex,  0)

= Kappa mechanism
{title2=$\kappa$ mechanism}

= Opacity mechanism
{synonym}

The opacity mechanism drives <stellar pulsation> when compression increases <opacity> in a layer, trapping heat at a phase that feeds mechanical oscillation. Helium <ionization> zones provide this driving in <Cepheid variables>.

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