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
Proceedings paper
Field of Study
10308 Astronomy
Confidentiality degree
is not subject to a state or trade secret
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).
Changed: 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.