Magnetic Fields in the Radiative Interior of Stars - Part Two - Forced Convection and the 7LI Abundance

Astronomy and Astrophysics – Astrophysics

Scientific paper

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Scientific paper

Magnetic fields of various forms, and of strengths ranging up to 5×108gauss, in the radiative core of the Sun have been hypothesized by various authors. This paper points out that the thermal shadows of magnetic inhomogeneities in the radiative core cause vertical mixing of fluid, with possible consequences for the 7Li abundance in the Sun. Magnetic fields of the order of 4×105gauss with scales of 3×104km are sufficient to provide the partial depletion of 7Li inferred from observation. It is found that the rms field in the outer radiative zone cannot much exceed 4×105gauss.

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