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Dynamical Bar Instability in Rotating Stars: Effect of General Relativity
Motoyuki Saijo, Masaru Shibata, Thomas W. Baumgarte +1
We study the dynamical stability against bar-mode deformation of rapidly and differentially rotating stars in the first post-Newtonian approximation of general relativity. We vary…
Properties of general relativistic, irrotational binary neutron stars in close quasiequilibrium orbits : Polytropic equations of state
Koji Uryu, Masaru Shibata, Yoshiharu Eriguchi
We investigate close binary neutron stars in quasiequilibrium states in a general relativistic framework. We assume conformal flatness for the spatial metric and irrotational veloc…
Axisymmetric Simulations of Rotating Stellar Collapse in Full General Relativity --- Criteria for Prompt Collapse to Black Holes
Masaru Shibata
Motivated by a recent paper by the Potsdam numerical relativity group, we have constructed a new numerical code for hydrodynamic simulation of axisymmetric systems in full general…
Black holes in the brane world:Time symmetric initial data
Tetsuya Shiromizu, Masaru Shibata
We numerically construct time-symmetric initial data sets of a black hole in the Randall-Sundrum brane world model, assuming that the black hole is spherical on the brane. We find…
Response of Interferometric Detectors to Scalar Gravitational Waves
Ken-ichi Nakao, Tomohiro Harada, Masaru Shibata +2
We rigorously analyze the frequency response functions and antenna sensitivity patterns of three types of interferometric detectors to scalar mode of gravitational waves which is p…
The bar-mode instability in differentially rotating neutron stars: Simulations in full general relativity
Masaru Shibata, Thomas W. Baumgarte, Stuart L. Shapiro
We study the dynamical stability against bar-mode deformation of rapidly spinning neutron stars with differential rotation. We perform fully relativistic 3D simulations of compact…