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Collapse to Black Holes in Brans-Dicke Theory: II. Comparison with General Relativity
Mark A. Scheel, Stuart L. Shapiro, Saul A. Teukolsky
We discuss a number of long-standing theoretical questions about collapse to black holes in the Brans-Dicke theory of gravitation. Using a new numerical code, we show that Oppenhei…
Collapse to Black Holes in Brans-Dicke Theory: I. Horizon Boundary Conditions for Dynamical Spacetimes
Mark A. Scheel, Stuart L. Shapiro, Saul A. Teukolsky
We present a new numerical code that evolves a spherically symmetric configuration of collisionless matter in the Brans-Dicke theory of gravitation. In this theory the spacetime is…
Hydrodynamic Evolution of Coalescing Compact Binaries
F. A. Rasio, S. L. Shapiro
In addition to their possible relevance to gamma-ray bursts, coalescing binary neutron stars have long been recognized as important sources of gravitational radiation that should b…
Calculation of gravitational wave forms from black hole collisions and disk collapse: Applying perturbation theory to numerical spacetimes
Andrew M. Abrahams, Stuart L. Shapiro, Saul A. Teukolsky
Many simulations of gravitational collapse to black holes become inaccurate before the total emitted gravitational radiation can be determined. The main difficulty is that a signif…
Gravitational Radiation from Rapidly Rotating Nascent Neutron Stars
Dong Lai, Stu Shapiro
We study the secular evolution and gravitational wave signature of a newly-formed, rapidly rotating neutron star. The neutron star may arise from core collapse in a massive star or…
Hydrodynamics of Rotating Stars and Close Binary Interactions: Compressible Ellipsoid Models
Dong Lai, Frederic A. Rasio, Stuart L. Shapiro
We develop a new formalism to study the dynamics of fluid polytropes in three dimensions. The stars are modeled as compressible ellipsoids and the hydrodynamic equations are reduce…