Self-energy radiative corrections in hydrogen-like systems: Peter J. Mohr. Lawrence Berkeley Laboratory, University of California, Berkeley, California 94720

• Publisher: Elsevier Science
• Year: 1974
• Tongue: English
• Weight: 78 KB
• Volume: 87
• Category: Article
• ISSN: 0003-4916
• DOI: 10.1016/0003-4916(74)90048-7

✦ Synopsis

Methods developed in a previous paper on perturbations of the Schwarzschild metric are here extended to the treatment of perturbations of perfect fluid stellar models. The perturbations of a perfect fluid sphere are explicitly decomposed into their gauge invariant and gauge dependent parts and a variational principle for the perturbation equations is derived. The Hamiltonian for the perturbations is constructed and a sufficient condition for stability against nonradial, radiative perturbations is derived from it. The stability criterion is applied to two interesting classes of stellar models, polytropic white dwarf models and high-density neutron star cores with pressure proportional to energy density.