Abstract
The influence of surface phenomena on general relativistic stellar models is investigated, with particular emphasis on the critical mass value and the adiabatic stability. It will be shown, in a particular model, that for a given radius, the maximum value of the total mass (compatible with a static, singularity-free configuration) is a decreasing function of the surface tension coefficient. It will also be shown that the inclusion of surface phenomena enhances the adiabatic instability of the model in the high density regime.
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