Semiconvection and Overshooting: Schwarzschild and Ledoux Criteria Revisited

Details Semiconvection and Overshooting: Schwarzschild and Ledoux Criteria Revisited Semiconvection and Overshooting: Schwarzschild and Ledoux Criteria Revisited

May 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000apj...534l.113c&link_type=abstract

The Astrophysical Journal, Volume 534, Issue 1, pp. L113-L115.

Astronomy and Astrophysics

Astronomy

8

Convection, Stars: Interiors, Turbulence

Scientific paper

We show that the Schwarzschild formalism, if accepted as the description of the structure of a semiconvective region, necessarily implies overshooting. The Ledoux formalism (if accepted) can be used without overshooting, provided a new relation for the mixing-length parameter α is satisfied. Should the latter not be satisfied, the Ledoux formalism would also require overshooting, that is, a nonlocal convection model.

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