White Dwarf Stars as Polytropic Gas Spheres

White Dwarf Stars as Polytropic Gas Spheres

We expect that relativistic effects play an important role in compact stars because their electrons are highly degenerate. In this paper, we study the properties of condensed matter in white dwarfs using Newtonian and relativistic polytropic fluid spheres. We propose two polytropic indices (n = 3 an...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Astrophysics 2016-12, Vol.59 (4), p.540-547
Hauptverfasser: Nouh, M. I., Saad, A. S., Elsanhoury, W. H., Shaker, A. A., Korany, B., Kamel, T. M.
Format: Artikel
Sprache:eng
Schlagworte:
Astronomy
Astrophysics and Astroparticles
Astrophysics and Cosmology
Computational fluid dynamics
Condensed matter
Fluids
Mathematical analysis
Mathematical models
Observations and Techniques
Physical properties
Physics
Physics and Astronomy
Relativistic effects
Space Exploration and Astronautics
Space Sciences (including Extraterrestrial Physics
White dwarf stars
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:We expect that relativistic effects play an important role in compact stars because their electrons are highly degenerate. In this paper, we study the properties of condensed matter in white dwarfs using Newtonian and relativistic polytropic fluid spheres. We propose two polytropic indices (n = 3 and n = 1.5) to investigate the physical characteristics of the models. We numerically solve the Lane-Emden equations and demonstrate that the relativistic effect is small in white dwarf stars.
ISSN:0571-7256
1573-8191
DOI:10.1007/s10511-016-9456-3