Thermal conduction by massive particles

Details Thermal conduction by massive particles Thermal conduction by massive particles

Apr 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...352..654g&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 352, April 1, 1990, p. 654-668. Research supported by the Institute for Adv

Astronomy and Astrophysics

Astrophysics

24

Dark Matter, Elementary Particles, Particle Mass, Stellar Interiors, Stellar Luminosity, Thermal Conductivity, Brownian Movements, Chapman-Enskog Theory, Monte Carlo Method

Scientific paper

Thermal conduction by a dilute gas of elementary particles in a background of nuclei is discussed. A formal solution to the linear Boltzmann collision equation is presented, analyzing carefully the symmetry assumptions that enter our approach. For the special case of hard-sphere interactions, applicable to many cosmion candidates that have been proposed to solve the solar neutrino problem, new explicit results are obtained by analytic and numeric techniques. It is found that the optimal cross section for energy transfer by cosmions in the sun is (7-10) x 10 to the -36th sq cm.

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