Results 21 to 30 of about 8,827 (260)
Thick Accretion Disk and Its Super Eddington Luminosity around a Spinning Black Hole
Journal of Astronomy and Space Sciences, 2021 In the general accretion disk model theory, the accretion disk surrounding an astronomical object comprises fluid rings obeying Keplerian motion. However, we should consider relativistic and rotational effects as we close in toward the center of ...
Uicheol Jang, Hongsu Kim, Yu Yi
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Spin supplementary conditions for spinning compact binaries [PDF]
Physical Review D, 2017 We consider different spin supplementary conditions (SSC) for a spinning compact binary with the leading-order spin-orbit (SO) interaction. The Lagrangian of the binary system can be constructed but it is acceleration-dependent in two cases of SSC.
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Spin-spin effects in radiating compact binaries [PDF]
Physical Review D, 1999 The dynamics of a binary system with two spinning components on an eccentric orbit is studied, with the inclusion of the spin-spin interaction terms appearing at the second post-Newtonian order. A generalized true anomaly parametrization properly describes the radial component of the motion.
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Non-compact local excitations in spin-glasses [PDF]
Europhysics Letters (EPL), 2002 We study numerically the local low-energy excitations in the 3-d Edwards-Anderson model for spin glasses. Given the ground state, we determine the lowest-lying connected cluster of flipped spins with a fixed volume containing one given spin. These excitations are not compact, having a fractal dimension close to two, suggesting an analogy with lattice ...
Lamarcq, Julien +3 more
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The Influence of a Rotary Compact Groove Cylinder on the Properties of Ring Spun Yarn
Journal of Natural Fibers, 2023 Hairiness is a key index for yarn quality as it has a critically negative influence on weaving process. Yarns with less hairiness are highly demanded in textile industry.
Hao Yu +8 more
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Rigidity of Compact Riemannian Spin Manifolds with Boundary [PDF]
Letters in Mathematical Physics, 2008 In this article, we prove new rigidity results for compact Riemannian spin manifolds with boundary whose scalar curvature is bounded from below by a non-positive constant. In particular, we obtain generalizations of a result of Hang-Wang \cite{hangwang1} based on a conjecture of Schroeder and Strake \cite{schroeder}.
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Spin effects in the inspiral of coalescing compact binaries [PDF]
Physical Review D, 1993 We derive the contributions of spin-orbit and spin-spin coupling to the gravitational radiation from coalescing binary systems of spinning compact objects. We calculate spin effects in the symmetric, trace-free radiative multipoles that determine the gravitational waveform, and the rate of energy loss.
Kidder, Lawrence E. +2 more
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Toward General Relativistic Magnetohydrodynamics Simulations in Stationary Nonvacuum Spacetimes
The Astrophysical Journal Letters, 2023 Accretion of magnetized gas on compact astrophysical objects such as black holes (BHs) has been successfully modeled using general relativistic magnetohydrodynamic (GRMHD) simulations.
Prashant Kocherlakota +4 more
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Preparation of Plant Protein Fiber and Its Application in the Food Field: A Review of Recent Research [PDF]
Shipin Kexue, 2023 Most natural plant protein molecules are spherical, and the excessively compact structure limits the nutrition and functionality of plant proteins. Spherical plant protein molecules can be transformed into plant protein fiber by various techniques such ...
WANG Yuxiang, ZHENG Zhaojun, LIU Yuanfa
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THE SPIN PARAMETER OF UNIFORMLY ROTATING COMPACT STARS [PDF]
The Astrophysical Journal, 2011 We study the dimensionless spin parameter $j (= c J/ (G M^2))$ of uniformly rotating neutron stars and quark stars in general relativity. We show numerically that the maximum value of the spin parameter of a neutron star rotating at the Keplerian frequency is $j_{\rm max} \sim 0.7$ for a wide class of realistic equations of state.
Lo, Ka-Wai, Lin, Lap-Ming
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