Astronomy and Astrophysics – Astrophysics – Solar and Stellar Astrophysics
Scientific paper
2009-06-18
Astrophys.J.701:1204-1208,2009
Astronomy and Astrophysics
Astrophysics
Solar and Stellar Astrophysics
15 pages, 5 figures, accepted for publication in Astrophysical Journal
Scientific paper
10.1088/0004-637X/701/2/1204
In the hot, dense plasma of solar and stellar interiors, Coulomb potentials are screened, resulting in increased nuclear reaction rates. Although Salpeter's approximation for static screening is widely accepted and used in stellar modeling, the question of screening in nuclear reactions has been revisited. In particular the issue of dynamic effects has been raised by Shaviv and Shaviv who apply the techniques of molecular dynamics to the conditions in the Sun's core in order to numerically determine the effect of screening. By directly calculating the motion of ions and electrons due to Coulomb interactions, the simulations are used to compute the effect of screening without the mean-field assumption inherent in Salpeter's approximation. In this paper we reproduce their numerical analysis of the screening energy in the plasma of the solar core and conclude that the effects of dynamic screening are relevant and should be included when stellar nuclear reaction rates are computed.
Dappen Werner
Mao Dan
Mussack Katie
No associations
LandOfFree
Dynamic screening in 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 Dynamic screening in solar plasma, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dynamic screening in solar plasma will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-725715