Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010ap%26ss.328..171g&link_type=abstract
Astrophysics and Space Science, Volume 328, Issue 1-2, pp. 171-174
Astronomy and Astrophysics
Astrophysics
Sun, Diffusion, Elements Settling
Scientific paper
Although diffusion is usually associated with equalizing of the chemical composition, the pressure and temperature gradients inside the Sun cause elemental diffusion segregation. While light hydrogen is flowing up to the solar envelope, helium and heavier elements are settling down to the core. The target of our simulation is an accurate estimation of the settling rate in solar plasma during the course of solar evolution. The rate of helium depletion in the envelope is a key parameter of the solar evolution and depends on position and conditions around the base of the convective mixing zone. The rate of heavy element settling is sensitive to the degree of ionization and interaction with the radiation flux. We estimate the effect of ion ionization on the settling rate for several heavy elements up to iron in the framework of the LTE assumption and the thermodynamic calculation according to SAHA-S EOS.
Baturin Vladimir A.
Gorshkov Alexey B.
No associations
LandOfFree
Elemental diffusion and segregation processes in partially ionized solar plasma does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Elemental diffusion and segregation processes in partially ionized solar plasma, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Elemental diffusion and segregation processes in partially ionized solar plasma will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1645851