The response of the adiabatic exponent Gamma(1) to modifications of solar models

Details The response of the adiabatic exponent Gamma(1) to modifications of solar models The response of the adiabatic exponent Gamma(1) to modifications of solar models

Feb 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...367..666c&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 367, Feb. 1, 1991, p. 666-670. Research supported by NASA.

Astronomy and Astrophysics

Astrophysics

8

Abundance, Adiabatic Conditions, Neon, Solar Interior, Stellar Models, Helioseismology, Helium, Luminosity

Scientific paper

Guenther et al. (1989) investigated the effet of varying the abundance of elemental Ne on solar models and found that the changes in some aspects of these models in the ionization zones of helium and hydrogen were nonmonotonic functions of the assumed Ne abundance. In this paper, the results of Guenther et al. are examined, and it is found that the apparent nonmonotonic behavior of the models was caused by slight errors in the radii of their models, combined with the fact that the adiabatic exponent Gamma(1) was compared at fixed distance r from the center of the model. When the models are compared at fixed fractional radius r/R, the differences in the values of Gamma(1) were found to behave in a much more regular way.

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