Systematic relativistic quantum effects on screening of fusion rates in white dwarfs

Details Systematic relativistic quantum effects on screening of fusion rates in white dwarfs Systematic relativistic quantum effects on screening of fusion rates in white dwarfs

2006-11-21

arxiv.org/abs/astro-ph/0611688v1

Astronomy and Astrophysics

Astrophysics

Relativistic treatment of quantum effects utilized

Scientific paper

Relativistic electron degeneracy effects are dominant in ultra-dense plasmas (UDP), such as those found in white dwarfs. These effects can be treated systematically by obtaining an expansion of the screening length in inverse powers of $\hbar^{2}$. In general, our theory leads to an ${\cal O}(10)$ effect on the enhancement of fusion rates in white dwarfs. Further, it is shown analytically for these stellar conditions that Bose statistics of nuclei have a negligible effect on the screening length, in consonance with Monte Carlo simulations found in literature.

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