Dynamical instability of differentially rotating stars

Details Dynamical instability of differentially rotating stars Dynamical instability of differentially rotating stars

2002-06-02

arxiv.org/abs/gr-qc/0206002v2

Mon.Not.Roy.Astron.Soc.334:L27,2002

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

5 pages, 7 figures, accepted for publication in MNRAS

Scientific paper

10.1046/j.1365-8711.2002.05724.x

We study the dynamical instability against bar-mode deformation of differentially rotating stars. We performed numerical simulation and linear perturbation analysis adopting polytropic equations of state with the polytropic index $n=1$. It is found that rotating stars of a high degree of differential rotation are dynamically unstable even for the ratio of the kinetic energy to the gravitational potential energy of $O(0.01)$. Gravitational waves from the final nonaxisymmetric quasistationary states are calculated in the quadrupole formula. For rotating stars of mass $1.4M_{\odot}$ and radius several 10 km, gravitational waves have frequency several 100 Hz and effective amplitude $\sim 5 \times 10^{-22}$ at a distance of $\sim 100$ Mpc.

Affiliated with

Also associated with

No associations

Rating

Dynamical instability of differentially rotating stars does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Dynamical instability of differentially rotating stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dynamical instability of differentially rotating stars will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-619810