Astronomy and Astrophysics – Astrophysics
Scientific paper
May 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988ap%26ss.144..519r&link_type=abstract
Astrophysics and Space Science (ISSN 0004-640X), vol. 144, no. 1-2, May 1988, p. 519-533.
Astronomy and Astrophysics
Astrophysics
2
Cosmic Plasma, Heavy Elements, Quantum Theory, Solar Neutrinos, Stellar Interiors, Abundance, Gravitational Effects, Poisson Equation
Scientific paper
Theoretical predictions of the phase separation of heavy elements in internal stellar plasmas, based on the classical Debye-Hückel and mean spherical approximation, have offered a solution to the "solar neutrino puzzle". The authors challenge the latter conclusions by showing that the linearization of the Poisson-Boltzmann equation can be performed to avoid the negativity of pair correlation functions, and that the importance of classical charge-charge effects is considerably greater than quantum effects in determining the internal energy of solar plasmas. Comparison between gravity and radiation pressure acting on phase-separated high-Z plasma "droplets" supports the formation of a small "iron core" in the center of the Sun confirming Rouse's suggestion that the frequencies of the non-radial g-modes and the five-min band oscillations in the Sun can be explained only by the existence of such a core. The depletion of the Sun's interior of heavy elements results in a decreased opacity and, consequently a higher temperature which finally leads to a chlorine neutrino signal of about 2.5 solar neutrino unit.
Dearborn David S.
Marx George
Ruff Imre
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