Internal Structure and Apsidal Motions of Polytropic Stars in Close Binaries

FV Sirotkin, WT Kim - The Astrophysical Journal, 2009 - iopscience.iop.org
We consider a synchronized, circular-orbit binary consisting of a polytrope with index n and
a point-mass object, and use a self-consistent field (SCF) method to construct the …

Effects of mass variation on structures of differentially rotating polytropic stars

S Kumar, S Saini, KK Singh - New Astronomy, 2018 - Elsevier
A method is proposed for determining equilibrium structures and various physical
parameters of differentially rotating polytropic models of stars, taking into account the effect …

On the validity of series expansion being used for the position of a point on a Roche equipotential

AK Lal, S Saini, C Mohan, VP Singh - Astrophysics and Space Science, 2007 - Springer
The concept of Roche equipotentials has been frequently used in literature to study the
problems of rotating stars and stars in binary systems. However in spite of using this …

Effect of Coriolis force on the shapes of rotating stars and stars in binary systems

AK Lal, A Pathania, C Mohan - Astrophysics and space science, 2009 - Springer
In this paper an attempt has been made to determine the effect of Coriolis force on the
shapes of Roche equipotential surfaces of rotating stars and stars in binary systems …

[PDF][PDF] Influences of variant mass on the structures of differentially rotating and tidally distorted polytropes

S Saini, S Kumar, KK Singh - Nonlinear Studies, 2017 - researchgate.net
A systematic way is proposed to determine the balanced structures, equilibria and numerous
physical parameters of differentially rotating polytropic stars taking into the account of the …

Effect of Coriolis force on the equilibrium structures of rotating stars and stars in binary systems

AK Lal, A Pathania, C Mohan - Astrophysics and space science, 2008 - Springer
Abstract Kopal (Adv. Astron. Astrophys. 9: 1–65, 1972) introduced the concept of Roche
equipotentials to incorporate the effects of rotation and tidal distortions on the equilibrium …

Equilibrium structure of rotationally and tidally distorted Prasad model including the effect of mass variation inside the star

S Saini, AK Lal, S Kumar - Astrophysics, 2014 - Springer
In this paper we propose suitable modifications in the concept of Roche equipotentials to
account for the effect of mass distribution inside the star on its equipotential surfaces and …

On the Use of Roche Equipotentials in Analysing the Problems of Binary and Rotating Stars

A Pathania, AK Lal, C Mohan - Journal of Astrophysics and Astronomy, 2013 - Springer
Abstract Kopal (Adv. Astron. Astrophys., 9, 1, 1972) introduced the concept of Roche
equipotentials to analyse the effects of rotational and tidal distortions in case of stars in …

Analytic and computational studies of structures and oscillations of rotating stars and stars in binary systems

A Pathania - 2010 - shodhganga.inflibnet.ac.in
In the present thesis an attempt has been made to extend the work of Mohan et al (108, 109)
and Lal (70). This work relates to the analytic studies of the problems of computing the …

[PDF][PDF] EFFECT OF NON-UNIFORM DENSITY ON EQUILBRIUM STRUCTURE OF DIFFERENTIALLY ROTATING WHITE DWARF STAR

M Libber - 2022 - 14.139.238.229
The present thesis deals with the problems of determining the effects of differential rotation
on the equilibrium structures of white dwarf stars. This thesis consists of three chapters …