Published November 1982 | Version v1
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Study of Vlasov instabilities of a gravitational plasma in realistic cosmology

Creators

Description

A description is given of the cosmological model in which the perturbations will evolve and a bref survey relating to the evolution of the perturbations such as they have been described in recent works. The role of heavy neutrinos in the evolution of baryon perturbations is recalled. Vlasov's linearized system is established for a gravitational plasma. The classification of the gravitational field according to its components of helicity is given. The method of two timescales is introduced in order to solve Vlasov's linearized system. The standard solutions in helicity modes +-2, +-1, and 0 are studied successively

Availability note (English)

MF available from INIS under the Report Number.

Abstract (French)

On donne une description du modele cosmologique dans lequel les perturbations vont evoluer et un bref apercu relatif a l'evolution des perturbations telles qu'elles sont decrites dans les travaux recents. On rappelle le role des neutrinos massifs dans l'evolution des perturbations baryoniques. On etablit le systeme linearise de Vlasov pour un plasma gravitationnel. On donne la classification du champ de gravitation selon ses composantes d'helicite. On introduit la methode a deux echelles de temps pour resoudre le systeme linearise de Vlasov. On etudie successivement les solutions classees en modes d'helicite +-2, +-1 et 0

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Additional details

Additional titles

Original title (French)
Etude des instabilites Vlasoviennes d'un plasma gravitationnel en cosmologie relativiste

Publishing Information

Imprint Pagination
113 p.
Report number
FRNC-TH--1927

INIS

Country of Publication
France
Country of Input or Organization
France
INIS RN
16079361
Subject category
S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
Resource subtype / Literary indicator
Thesis
Descriptors DEI
BARYONS; BOLTZMANN-VLASOV EQUATION; COSMOLOGICAL MODELS; COSMOLOGY; DENSITY; EINSTEIN FIELD EQUATIONS; GENERAL RELATIVITY THEORY; GRAVITATIONAL FIELDS; GRAVITATIONAL INTERACTIONS; GRAVITATIONAL WAVES; INSTABILITY; RELATIVISTIC PLASMA
Descriptors DEC
BASIC INTERACTIONS; DIFFERENTIAL EQUATIONS; ELEMENTARY PARTICLES; EQUATIONS; FERMIONS; FIELD EQUATIONS; FIELD THEORIES; HADRONS; MATHEMATICAL MODELS; PARTIAL DIFFERENTIAL EQUATIONS; PHYSICAL PROPERTIES; PLASMA