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Black Holes, White Dwarfs, and Neutron Stars
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White Dwarfs and Neutron Stars: The Physics of Compact Objects
A multipassenger pedal vehicle comprising at least two rear drive assemblies, each having a conventional design and including a triangularly shaped frame, a rear wheel, a seat, and a pedal assembly.Expand
Black Hole Spin Evolution
We consider a subset of the physical processes that determine the spin j ≡ a/M of astrophysical black holes. These include (1) Initial conditions. Recent models suggest that the collapse of aExpand
Spin, accretion, and the cosmological growth of supermassive black holes
If supermassive black holes (SMBHs) are the energy sources that power quasars and active galactic nuclei (AGNs), then QSO SDSS 1148+5251, the quasar with the highest redshift (zQSO = 6.43), hosts anExpand
The distribution and consumption rate of stars around a massive, collapsed object
We consider the steady-state distribution and consumption rate of stars orbiting a massive object at the center of a spherical, N-body stellar system. The distribution of stars is determined by theExpand
Dynamical fate of wide binaries in the solar neighborhood
An analytical model is presented for the evolution of wide binaries in the Galaxy. The study is pertinent to the postulated solar companion, Nemesis, which may disturb the Oort cloud and causeExpand
On the numerical integration of Einstein's field equations
Many numerical codes now under development to solve Einstein's equations of general relativity in $(3+1)$-dimensional spacetimes employ the standard ADM form of the field equations. This formExpand
GW170817, general relativistic magnetohydrodynamic simulations, and the neutron star maximum mass.
Recent numerical simulations in general relativistic magnetohydrodynamics (GRMHD) provide useful constraints for the interpretation of the GW170817 discovery. Combining the observed data with theseExpand
A two-temperature accretion disk model for Cygnus X-1: structure and spectrum.
We present a model for Cygnus X-1, involving an accretion disk around a black hole, which can explain the observed X-ray spectrum from 8 to 500 keV. In particular we construct a detailed model of theExpand
Gravitational radiation from rapidly rotating nascent neutron stars
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 from theExpand