Editing SSCpt2/IntroductorySummary (section)

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In the following table, each green check mark identifies and provides a link to an H_Book chapter that presents a detailed discussion of the topic that is identified on the left &#8212; for example, the equilibirum structure of "isolated polytropes" or an "isothermal sphere embedded in an external medium."  Mathematical models that provide full solutions to the PGEs, including details regarding the internal structural profiles of equilibrium configurations, are derived in chapters whose check marks fall under the column labeled "Detailed Force-Balance."  Insight into the properties of equilibrium systems that is revealed via an analysis of a system's free-energy and the corresponding scalar virial theorem is presented in chapters whose check marks fall under the column labeled "Virial Equilibrium."  Motivated by a striking similarity between the sets of model sequences displayed in the two "mass-radius" diagrams shown, above, a link also is provided to a chapter that discusses the relationship between the limiting mass associated with Bonnor-Ebert spheres and the Sch&ouml;nberg-Chandrasekhar mass limit.

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