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In , particularly general relativity, a static spherically symmetric perfect fluid solution (a term which is often abbreviated as ssspf) is a spacetime equipped with suitable tensor fields which models a static round ball of a fluid with isotropic pressure.

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rdfs:label	Static spherically symmetric perfect fluid (en) Fluido estático esfericamente simétrico perfeito (pt)
rdfs:comment	In , particularly general relativity, a static spherically symmetric perfect fluid solution (a term which is often abbreviated as ssspf) is a spacetime equipped with suitable tensor fields which models a static round ball of a fluid with isotropic pressure. (en) Em teorias métricas da gravitação, particularmente relatividade geral, uma solução para um fluido estático esfericamente simétrico perfeito (um termo o qual é abreviado em inglês como ssspf, de static spherically symmetric perfect fluid) é um espaço-tempo equipado com o apropriado conjunto de tensores de campo o qual modelam uma esfera estática de fluido com pressão isotrópica. (pt)
dcterms:subject	Exact solutions in general relativity
Wikipage page ID	2881110 (xsd:integer)
Wikipage revision ID	1117750286 (xsd:integer)
Link from a Wikipage to another Wikipage	Cambridge University Press Pressure Interior Schwarzschild metric Einstein field equation General relativity Equation of state Star Exact solutions in general relativity White dwarf Brans–Dicke theory Fluid solution Isotropic coordinates Tensor field Isotropic Hydrostatic equilibrium Polytrope Spacetime Neutron star Asymptotically flat Linear Schwarzschild coordinates Vacuum solution (general relativity) Oppenheimer-Volkov equation dbr:Exterior_region dbr:Interior_region dbr:Matching_conditions dbr:Metric_theories_of_gravitation
Link from a Wikipage to an external page	http://www.arxiv.org/abs/gr-qc/0002021 http://www.arxiv.org/abs/gr-qc/0002022 http://www.arxiv.org/abs/gr-qc/0011040 http://www.arxiv.org/abs/gr-qc/0209104 http://www.arxiv.org/abs/gr-qc/0306109 http://www.arxiv.org/abs/gr-qc/0503007 http://www.arxiv.org/abs/gr-qc/9809013
sameAs	Static spherically symmetric perfect fluid Static spherically symmetric perfect fluid Static spherically symmetric perfect fluid Static spherically symmetric perfect fluid Static spherically symmetric perfect fluid
dbp:wikiPageUsesTemplate	dbt:Cite_book dbt:Cite_journal
has abstract	In , particularly general relativity, a static spherically symmetric perfect fluid solution (a term which is often abbreviated as ssspf) is a spacetime equipped with suitable tensor fields which models a static round ball of a fluid with isotropic pressure. Such solutions are often used as idealized models of stars, especially compact objects such as white dwarfs and especially neutron stars. In general relativity, a model of an isolated star (or other fluid ball) generally consists of a fluid-filled , which is technically a perfect fluid solution of the Einstein field equation, and an , which is an asymptotically flat vacuum solution. These two pieces must be carefully matched across the world sheet of a spherical surface, the surface of zero pressure. (There are various mathematical criteria called for checking that the required matching has been successfully achieved.) Similar statements hold for other metric theories of gravitation, such as the Brans–Dicke theory. In this article, we will focus on the construction of exact ssspf solutions in our current Gold Standard theory of gravitation, the theory of general relativity. To anticipate, the figure at right depicts (by means of an embedding diagram) the spatial geometry of a simple example of a stellar model in general relativity. The euclidean space in which this two-dimensional Riemannian manifold (standing in for a three-dimensional Riemannian manifold) is embedded has no physical significance, it is merely a visual aid to help convey a quick impression of the kind of geometrical features we will encounter. (en) Em teorias métricas da gravitação, particularmente relatividade geral, uma solução para um fluido estático esfericamente simétrico perfeito (um termo o qual é abreviado em inglês como ssspf, de static spherically symmetric perfect fluid) é um espaço-tempo equipado com o apropriado conjunto de tensores de campo o qual modelam uma esfera estática de fluido com pressão isotrópica. Tais soluções são frequentemente usadas como modelos idealizados de estrelas, especialmente objetos tais como as anãs brancas e especialmente as estrelas de nêutrons. Em relatividade geral, um modelo de uma estrela isolada (ou outra esfera de fluido) geralmente consiste de uma preenchida de fluido, a qual é tecnicamente uma solução de fluido perfeito das equações de campo de Einstein, e uma , a qual esta em uma assintoticamente plana solução do vácuo. Estas duas partes devem ser cuidadosamente combinadas através da superfície do mundo de uma superfície esférica, a superfície de pressão zero. (Existem vários critérios matemáticos chamados para verificar-se que a combinação requerida tenha sido escolhida com sucesso.) Condutas similares adaptam-se para outras teorias métricas da gravitação, tais como a teoria Brans-Dicke. (pt)
gold:hypernym	Spacetime
prov:wasDerivedFrom	wikipedia-en:Static_spherically_symmetric_perfect_fluid?oldid=1117750286&ns=0
page length (characters) of wiki page	7992 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:Static_spherically_symmetric_perfect_fluid
is Link from a Wikipage to another Wikipage of	Richard C. Tolman Index of physics articles (S) Interior Schwarzschild metric Gaussian polar coordinates Exact solutions in general relativity Fluid solution Isotropic coordinates Kerr metric Tolman–Oppenheimer–Volkoff equation Schwarzschild coordinates
is foaf:primaryTopic of	wikipedia-en:Static_spherically_symmetric_perfect_fluid

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