4 papers
Normal modes of relativistic systems in post-Newtonian approximation and the stability curve of r-modes
Vahid Rezania
In part I, we use the post-Newtonian (pn) order of Liouville's equation to study the normal modes of oscillation of a spherically symmetric relativistic system. Perturbations that…
Angular momentum transfer to a star by gravitational waves
H. G. Khosroshahi, Y. Sobouti
Interaction of a stochastic background of gravitational radiation with celestial systems changes their dynamical elements in a random manner and give rise to secular changes in tim…
Integrals and static solutions of general relativistic Liouville's equation in post Newtonian approximation
V. Rezania, Y. Sobouti
The post-Newtonian approximation of general relativistic Liouville's equation is presented. Two integrals of it, generalizations of the classical energy and angular momentum, are o…
Normal modes of relativistic systems in post Newtonian approximation
Y. Sobouti, V. Rezania
We use the post Newtonian (pn) order of Liouville's equation (pnl) to study the normal modes of oscillation of a relativistic system. In addition to classical modes, we are able to…