Detailed Information on Publication Record
2008
Dynamical stability of fluid spheres in spacetimes with a nonzero cosmological constant
HLEDÍK, Stanislav, Kristina MRÁZOVÁ and Zdeněk STUCHLÍKBasic information
Original name
Dynamical stability of fluid spheres in spacetimes with a nonzero cosmological constant
Authors
HLEDÍK, Stanislav, Kristina MRÁZOVÁ and Zdeněk STUCHLÍK
Edition
Singapore, Eleventh Marcel Grossmann Meeting on General Relativity Berlin, 3 pp. 2008
Publisher
World Scientific
Other information
Language
English
Type of outcome
Stať ve sborníku
Field of Study
10308 Astronomy
Confidentiality degree
není předmětem státního či obchodního tajemství
Organization unit
Faculty of Philosophy and Science in Opava
ISBN
978-981-283-426-3
Keywords in English
Perfect fluid configurations, Cosmological constant, Dynamical stability
Tags
International impact
Links
MSM4781305903, plan (intention).
Změněno: 8/12/2020 14:13, Mgr. Pavlína Jalůvková
Abstract
V originále
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.