### Vogt-Russell theorem

(proposition that a star's structure depends on its mass and makeup)

The **Vogt-Russell theorem** is the proposition that a star's
structure and evolution depends only on its mass and chemical makeup.
Despite the term "theorem", it is not "proved" as would be a
mathematical theorem. However, it is accepted as typically
approximately true for main sequence stars in
hydrostatic equilibrium, based on observation and current
understanding of the structure of stars. It was devised when the
mechanics of binary stars revealed stellar masses, which could
be compared with spectrography and luminosity. Among the
confounding factors are the effects of interactions with companion
stars, such as mass transfer (c.f., Algol).

(*stars,stellar evolution,stellar structure*)
**Further reading:**

http://en.wikipedia.org/wiki/Vogt-Russell_theorem

https://arxiv.org/abs/1504.08188

https://arxiv.org/abs/1812.11864

http://www.faculty.virginia.edu/ASTR5610/lectures/stellar_evolution/stellar_evo.html

**Referenced by pages:**

post-common envelope binary (PCEB)

stellar evolution

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