Dynamical stability of fluid spheres in spacetimes with a nonzero cosmological constant

@inproceedings{43241,
   author = {Hledík, Stanislav and Mrázová, Kristina and Stuchlík, Zdeněk},
   address = {Singapore},
   booktitle = {Eleventh Marcel Grossmann Meeting on General Relativity Berlin},
   keywords = {Perfect fluid configurations, Cosmological constant, Dynamical stability},
   language = {eng},
   location = {Singapore},
   isbn = {978-981-283-426-3},
   publisher = {World Scientific},
   title = {Dynamical stability of fluid spheres in spacetimes with a nonzero cosmological constant},
   year = {2008}
}

TY  - JOUR
ID  - 43241
AU  - Hledík, Stanislav - Mrázová, Kristina - Stuchlík, Zdeněk
PY  - 2008
TI  - Dynamical stability of fluid spheres in spacetimes with a nonzero cosmological constant
PB  - World Scientific
CY  - Singapore
SN  - 9789812834263
KW  - Perfect fluid configurations, Cosmological constant, Dynamical stability
N2  - The Sturm-Liouville eigenvalue equation for eigenmodes of the radial oscillations is determined for spherically symmetric perfect fluid configurations in spacetimes with a nonzero cosmological constant and applied in the cases of configurations with uniform distribution of energy density and polytropic spheres. It is shown that a repulsive cosmological constant rises the critical adiabatic index and decreases the critical radius under which the dynamical instability occurs.
ER  - 

HLEDÍK, Stanislav, Kristina MRÁZOVÁ and Zdeněk STUCHLÍK. Dynamical stability of fluid spheres in spacetimes with a nonzero cosmological constant. In \textit{Eleventh Marcel Grossmann Meeting on General Relativity Berlin}. Singapore: World Scientific, 2008, 3 pp. ISBN~978-981-283-426-3.