title: Alternative model of the Antonov problem: generalization with the presence of a mass spectrum.
abstract: We extend the quasiergodic model proposed as an alternative version of the Antonov isothermal model [L. Velazquez and F. Guzman, Phys. Rev. E 68, 066116 (2003)] by including the incidence of a mass spectrum. We propose an iterative procedure inspired by the Newton-Raphson method to solve the resulting nonlinear structure equations. As an example of application, we assume the existence of a mass spectrum with a standard Salpeter form, dN=Cdmm;{alpha} . We analyze consequences of this realistic ingredient on the system thermodynamical behavior and perform a quantitative description of the mass segregation effect.
authors.affiliation: Departamento de Física, Universidad de Pinar del Río, Martí 270, Esq. 27 de Noviembre, Pinar del Río, Cuba. luisberis@geo.upr.edu.cu
authors.forename: L
authors.initials: L
authors.lastname: Velazquez
authors.forename: S Gómez
authors.initials: SG
authors.lastname: García
authors.forename: F
authors.initials: F
authors.lastname: Guzmán