Astronomy and Astrophysics – Astrophysics
Scientific paper
Sep 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996a%26a...313..679m&link_type=abstract
Astronomy and Astrophysics, v.313, p.679-684
Astronomy and Astrophysics
Astrophysics
Plasmas, Radiative Transfer, Scattering, Sun: Interior, Sun: Particle Emission
Scientific paper
In the framework of a model which gives the possibility to apply the theory of multiple scattering of electromagnetic waves in random media to the study of different phenomena in plasma, the contribution of Anderson localization of light to the opacity of stellar interiors due to scattering of light on free electrons, is discussed. There are two different physical processes connected with collective effects of photons that may change the free electron scattering opacities: coherent multiple backscattering of light on electrons and Mie resonances on electrons. The first process is relevant to stars like the Sun and the second to very hot stars like white dwarfs. We focus on the first mechanism and demonstrate that coherent multiple backscattering of light on free electrons - the manifestation of a weak Anderson localization of light - may substantially increase the opacity of the central part of the Sun caused by Thomson scattering. This in turn changes the relative magnitudes of the calculated pp, ^8^B, ^7^Be, pep and CNO neutrino fluxes towards increasing the numbers of ^8^B and ^7^Be neutrinos estimated in standard solar models. Therefore, the solar neutrino problem may become even more complicated and solutions with new neutrino physics would appear to be more suitable.
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