Kinetic theory of collisionless self-gravitating gases: Post-Newtonian polytropes

dc.creatorAgon, CA
dc.creatorPedraza, JF
dc.creatorRamos-Caro, J
dc.date2011
dc.date42522
dc.date2014-07-30T14:35:55Z
dc.date2015-11-26T17:03:26Z
dc.date2014-07-30T14:35:55Z
dc.date2015-11-26T17:03:26Z
dc.date.accessioned2018-03-28T23:51:34Z
dc.date.available2018-03-28T23:51:34Z
dc.identifierPhysical Review D. Amer Physical Soc, v. 83, n. 12, 2011.
dc.identifier1550-7998
dc.identifierWOS:000291700400002
dc.identifier10.1103/PhysRevD.83.123007
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/60989
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/60989
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1279073
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionIn this paper we study the kinetic theory of many-particle astrophysical systems and we present a consistent version of the collisionless Boltzmann equation in the first post-Newtonian (1PN) approximation. We argue that the equation presented by Rezania and Sobouti, in Astron. Astrophys. 354, 1110 (2000) is not the correct expression to describe the evolution of a collisionless self-gravitating gas. One of the reasons that account for the previous statement is that the energy of a free-falling test particle, obeying the 1PN equations of motion for static gravitational fields, is not a static solution of the mentioned equation. The same statement holds for the angular momentum, in the case of spherical systems. We provide the necessary corrections and obtain an equation that is consistent with the corresponding equations of motion and the 1PN conserved quantities. We suggest some potential relevance for the study of high-density astrophysical systems and as an application we construct the corrected version of the post-Newtonian polytropes.
dc.description83
dc.description12
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.languageen
dc.publisherAmer Physical Soc
dc.publisherCollege Pk
dc.publisherEUA
dc.relationPhysical Review D
dc.relationPhys. Rev. D
dc.rightsaberto
dc.rightshttp://publish.aps.org/authors/transfer-of-copyright-agreement
dc.sourceWeb of Science
dc.subjectNonequilibrium Statistical-mechanics
dc.subjectGeneral-theory
dc.subjectStellar Dynamics
dc.subjectApproximation
dc.subjectRelativity
dc.subjectEquation
dc.subjectEquilibrium
dc.titleKinetic theory of collisionless self-gravitating gases: Post-Newtonian polytropes
dc.typeArtículos de revistas


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