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Comparing the inspiral of irrotational and corotational binary neutron stars
Matthew D. Duez, Thomas W. Baumgarte, Stuart L. Shapiro +2
We model the adiabatic inspiral of relativistic binary neutron stars in a quasi-equilibrium (QE) approximation, and compute the gravitational wavetrain from the late phase of the i…
A numerical testbed for singularity excision in moving black hole spacetimes
H. J. Yo, T. W. Baumgarte, S. L. Shapiro
We evolve a scalar field in a fixed Kerr-Schild background geometry to test simple -dimensional algorithms for singularity excision. We compare both centered and upwind sche…
Dynamical Bar Instability in Relativistic Rotating Stars
Motoyuki Saijo, Masaru Shibata, Thomas W. Baumgarte +1
We study by computational means the dynamical stability against bar-mode deformation of rapidly and differentially rotating stars in a post-Newtonian approximation of general relat…
The Innermost Stable Circular Orbit in Compact Binaries
Thomas W. Baumgarte
Newtonian point mass binaries can be brought into arbitrarily close circular orbits. Neutron stars and black holes, however, are extended, relativistic objects. Both finite size an…