Solar models and electron screening

Details Solar models and electron screening Solar models and electron screening

2001-02-21

arxiv.org/abs/astro-ph/0102353v1

Astron.Astrophys.371:1123-1127,2001

Astronomy and Astrophysics

Astrophysics

accepted for publication by Astron. Astrophys

Scientific paper

10.1051/0004-6361:20010225

We investigate the sensitivity of the solar model to changes in the nuclear reaction screening factors. We show that the sound speed profile as determined by helioseismology certainly rules out changes in the screening factors exceeding more than 10%. A slightly improved solar model could be obtained by enhancing screening by about 5% over the Salpeter value. We also discuss how envelope properties of the Sun depend on screening, too. We conclude that the solar model can be used to help settling the on-going dispute about the ``correct'' screening factors.

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