Estimating short-term solar variations by a simple envelope matching technique

Physics

Scientific paper

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Luminosity, Matching, Perturbation, Prediction Analysis Techniques, Solar Constant, Solar Flux Density, Variations, Estimating, Illuminance, Mathematical Models, Particle Flux Density, Radiant Flux Density, Solar Physics

Scientific paper

A simple matching technique is explained which allows the computation of the response of the solar surface to perturbations which occur at any depth within the convective envelope of the Sun. This technique was applied to a perturbation of the convective efficiency (alpha-mechanism), and of the non-gas component of the pressure (beta-mechanism) in different regions of the convection zone. The results indicate that either perturbation affects the solar luminosity. However, the alpha-mechanism has little effect in the solar radius, regardless of the location of the perturbed region, whereas the beta-mechanism produces radius changes that become quite large if the location of the perturbed region is deep within the solar convection zone.

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