The internal structure of neutron stars and white dwarfs, and the Jacobi virial equation

Aims. The internal structure constants k j and the radius of gyration are useful tools for investigating the apsidal motion and tidal evolution of close binaries and planetary systems. These parameters are available for various evolutionary phases but they are scarce for the late stages of stellar e...

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Detalles Bibliográficos
Autor: Claret dos Santos, Antonio
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2012
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/422829
Acceso en línea:http://hdl.handle.net/10261/422829
Access Level:acceso abierto
Palabra clave:Binaries: eclipsing
Stars: interiors
Stars: evolution
Stars: rotation
White dwarfs
Stars: neutron
Descripción
Sumario:Aims. The internal structure constants k j and the radius of gyration are useful tools for investigating the apsidal motion and tidal evolution of close binaries and planetary systems. These parameters are available for various evolutionary phases but they are scarce for the late stages of stellar evolution. To cover this gap, we present here the calculations of the apsidal-motion constants, the fractional radius of gyration, and the gravitational potential energy for two grids of cooling evolutionary sequences of white dwarfs and for neutron star models.