156 citations · 345 across the 18 of their papers we have counts for
10 papers · 1 filter
Accretion onto a moving black hole for stiff equations of state
Elliott Ewell, Peter K. Harris, Thomas W. Baumgarte +1
We revisit accretion of an asymptotically uniform fluid onto a moving Schwarzschild black hole, the relativistic analog of Bondi-Hoyle-Lyttleton accretion. Expanding on previous tr…
Primordial black holes captured by neutron stars: simulations in general relativity
Thomas W. Baumgarte, Stuart L. Shapiro
We present self-consistent numerical simulations in general relativity of putative primordial black holes inside neutron stars. Complementing a companion paper in which we assumed…
Primordial black holes captured by neutron stars: relativistic point-mass treatment
Thomas W. Baumgarte, Stuart L. Shapiro
Primordial black holes (PBHs), if they exist, may collide with and be captured by neutron stars. We adopt a relativistic point-mass approximation to study this capture, the subsequ…
Primordial black hole capture, gravitational wave beats, and the nuclear equation of state
Thomas W. Baumgarte, Stuart L. Shapiro
Primordial black holes (PBHs), if captured by neutron stars (NSs), would emit a characteristic gravitational wave (GW) signal as they orbit inside the host star. We identify a spec…
Oppenheimer-Snyder Collapse in Moving-Puncture Coordinates
Alexa N. Staley, Thomas W. Baumgarte, J. David Brown +2
Moving-puncture coordinates are commonly used in numerical simulations of black holes. Their properties for vacuum Schwarzschild black holes have been analyzed in a number of studi…
Numerical Models of Spin-Orbital Coupling in Neutron Star Binaries
P. Marronetti, S. L. Shapiro
We present a new numerical scheme for solving the initial value problem for quasiequilibrium binary neutron stars allowing for arbitrary spins. We construct sequences of circular-o…