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Funnel-flow accretion onto highly magnetized neutron stars and shock generation
Shigeyuki Karino, Motoki Kino, John C. Miller
In this paper, we initiate a new study of steady funnel-flow accretion onto strongly magnetized neutron stars, including a full treatment of shock generation. As a first step, we a…
Importance of Perturbed Gravitational Potentials in Differentially Rotating Newtonian Stars
Shigeyuki Karino
It is usually believed that the Cowling approximation can give satisfactory solutions if the stars %are highly compressible have soft equations of state and/or if the strongly gene…
Linear Stability Analysis of Differentially Rotating Polytropes -- New results for the m = 2 f-mode dynamical instability --
Shigeyuki Karino, Yoshiharu Eriguchi
We have studied the -mode oscillations of differentially rotating polytropes by making use of the linear stability analysis. We found that the critical values of where t…
Dynamical bar-mode instability of differentially rotating stars: Effects of equations of state and velocity profiles
Masaru Shibata, Shigeyuki Karino, Yoshiharu Eriguchi
As an extension of our previous work, we investigate the dynamical instability against nonaxisymmetric bar-mode deformations of differentially rotating stars in Newtonian gravity v…