Journal ArticleDOI
Nonlinear evolution of the r-modes in neutron stars.
TLDR
The evolution of a neutron-star r-mode driven unstable by gravitational radiation is studied here using numerical solutions of the full nonlinear fluid equations to study the nonlinear evolution of the mode.Abstract:
The evolution of a neutron-star $r$-mode driven unstable by gravitational radiation is studied here using numerical solutions of the full nonlinear fluid equations. The dimensionless amplitude of the mode grows to order unity before strong shocks develop which quickly damp the mode. In this simulation the star loses about $40%$ of its initial angular momentum and $50%$ of its rotational kinetic energy before the mode is damped. The nonlinear evolution causes the fluid to develop strong differential rotation which is concentrated near the surface and poles of the star.read more
Citations
More filters
Journal ArticleDOI
Constraining the r-mode saturation amplitude from a hypothetical detection of r-mode gravitational waves from a newborn neutron star - sensitivity study
TL;DR: In this article, an expression of the moment of inertia (MOI) of a neutron star as a function of observables from a hypothetical r-mode gravitational wave detection was derived.
Posted Content
Matters of Gravity, The Newsletter of the Topical Group on Gravitation of the American Physical Society, Volume 34, Fall 2009
TL;DR: GGR News: as discussed by the authors New Matters of Gravity Correspondents, by David Garfinkle, by Pablo Laguna, and New matters of gravity correspondents Correspondents Correspondence Correspondents: We hear that..., and we hear that we hear it ourselves, by GGR Correspondents.
Journal ArticleDOI
Evolution of newborn rapidly rotating magnetars: effects of r-mode and fall-back accretion
J. S. Wang,Zi-Gao Dai +1 more
TL;DR: In this article, the authors investigated the effects of the $r$-mode instability on a newborn rapidly-rotating magnetar with fall-back accretion and found that the magnetar's spin and $r-mode evolution are influenced by accretion.
Book ChapterDOI
Introduction
TL;DR: In this paper , it was shown that nonlinear waves, solitons and their nonlinear interactions are rare events in nature, and that such events occur every day in the oceans.