D 2008

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

HLEDÍK, Stanislav, Kristina MRÁZOVÁ and Zdeněk STUCHLÍK

Basic 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

sbornik, UF

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.
Displayed: 25/12/2024 19:04