TITLE:
Computing Differentially Rotating Neutron Stars Obeying Realistic Equations of State by Using Hartle’s Perturbation Method
AUTHORS:
Anastasios Katelouzos, Vassilis Geroyannis
KEYWORDS:
Change in Mass; Differential Rotation; General-Relativistic Models; Neutron Stars; Numerical Methods; Realistic Equations of State
JOURNAL NAME:
International Journal of Astronomy and Astrophysics,
Vol.3 No.3,
September
3,
2013
ABSTRACT:
In this paper, we use the well-known Hartle’s
perturbation method in order to compute models of differentially rotating
neutron stars obeying realistic equations of state. In our numerical treatment,
we keep terms up to third order in the angular velocity. We present indicative
numerical results for models satisfying a particular differential rotation law.
We emphasize on computing the change in mass owing to this differential
rotation law.