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dc.contributor.authorCubarsí Morera, Rafael
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Matemàtica Aplicada IV
dc.date.accessioned2007-10-11T18:04:39Z
dc.date.available2007-10-11T18:04:39Z
dc.date.issued2007-03-30
dc.identifier.urihttp://hdl.handle.net/2117/1242
dc.description.abstractThe exact mathematical expression for an arbitrary nth-order stellar hydrodynamic equation is explicitly obtained depending on the central moments of the velocity distribution. In such a form the equations are physically meaningful, since they can be compared with the ordinary hy- drodynamic equations of compressible, viscous fluids. The equations are deduced without any particular assumptions about symmetries, steadi- ness, or particular kinematic behaviours, so that they can be used in their complete form, and for any order, in future works with improved observational data. Also, in order to work with a finite number of equa- tions and unknowns, which would provide a dynamic model for the stel- lar system, the nth-order equation is needed to investigate in a more general way the closure conditions, which may be expressed in terms of velocity distribution statistics, as it is shown in a case example.
dc.format.extent15
dc.language.isoeng
dc.rightsAttribution-NonCommercial-NoDerivs 2.5 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/2.5/es/
dc.subjectÀrees temàtiques de la UPC::Matemàtiques i estadística::Equacions diferencials i integrals::Sistemes dinàmics
dc.subjectÀrees temàtiques de la UPC::Física::Astronomia i astrofísica::Cosmologia i cosmogonia
dc.subject.lcshStellar dynamics
dc.subject.lcshHydrodynamics Mathematical models
dc.subject.otherhydrodynamics
dc.subject.otherstatistics
dc.subject.othermethods: analytical
dc.subject.otherstars: kinematics
dc.subject.othergalaxies: kinematics and dynamics
dc.subject.othergalaxies: statistics
dc.titleThe complete form of moment equations of stellar dynamics
dc.typeExternal research report
dc.subject.lemacHidrodinàmica -- Matemàtica
dc.subject.lemacDinàmica estel·lar
dc.contributor.groupUniversitat Politècnica de Catalunya. gAGE - Grup d'Astronomia i Geomàtica
dc.subject.amsClassificació AMS::60 Probability theory and stochastic processes
dc.subject.amsClassificació AMS::62 Statistics
dc.subject.amsClassificació AMS::85 Astronomy and astrophysics
dc.rights.accessOpen Access
local.personalitzacitaciotrue


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