On the locally rotationally symmetric Einstein-Maxwell perfect fluid

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47813059%3A19240%2F16%3AN0000132" target="_blank" >RIV/47813059:19240/16:N0000132 - isvavai.cz</a>

Výsledek na webu

<a href="https://link.springer.com/article/10.1007%2Fs10714-016-2068-8" target="_blank" >https://link.springer.com/article/10.1007%2Fs10714-016-2068-8</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10714-016-2068-8" target="_blank" >10.1007/s10714-016-2068-8</a>

Jazyk výsledku

angličtina

Název v původním jazyce

On the locally rotationally symmetric Einstein-Maxwell perfect fluid

Popis výsledku v původním jazyce

We examine the stability of Einstein-Maxwell perfect fluid configurations with a privileged radial direction by means of a $1+1+2$-tetrad formalism. We use this formalism to cast in a quasilinear symmetric hyperbolic form the equations describing the evolution of the system. This hyperbolic reduction is used to discuss the stability of linear perturbations in some special cases. By restricting the analysis to isotropic fluid configurations, we assume a constant electrical conductivity coefficient for the fluid. As a result of this analysis we provide a complete classification and characterization of various stable and unstable configurations. We find, in particular, that in many cases the stability conditions are strongly determined by the constitutive equations and the electric conductivity. A threshold for the emergence of the instability appears in both contracting and expanding systems.

Název v anglickém jazyce

On the locally rotationally symmetric Einstein-Maxwell perfect fluid

Popis výsledku anglicky

We examine the stability of Einstein-Maxwell perfect fluid configurations with a privileged radial direction by means of a $1+1+2$-tetrad formalism. We use this formalism to cast in a quasilinear symmetric hyperbolic form the equations describing the evolution of the system. This hyperbolic reduction is used to discuss the stability of linear perturbations in some special cases. By restricting the analysis to isotropic fluid configurations, we assume a constant electrical conductivity coefficient for the fluid. As a result of this analysis we provide a complete classification and characterization of various stable and unstable configurations. We find, in particular, that in many cases the stability conditions are strongly determined by the constitutive equations and the electric conductivity. A threshold for the emergence of the instability appears in both contracting and expanding systems.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BN - Astronomie a nebeská mechanika, astrofyzika

OECD FORD obor

—

Projekt

<a href="/cs/project/GJ16-03564Y" target="_blank" >GJ16-03564Y: Konfigurace hmoty akreující v silném gravitačním poli kombinovaném s polem elektromagnetickým</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

General Relativity and Gravitation

ISSN

0001-7701

e-ISSN

—

Svazek periodika

48

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

28

Strana od-do

'74-1'-'74-28'

Kód UT WoS článku

000377369800005

EID výsledku v databázi Scopus

2-s2.0-84971260736