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- Physics 1
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281
Protocols for Robotic Telescope Networks
Published 2010-01-01“…., supernovae, near-earth asteroids, gravitational lensings, and gamma-ray bursts). This paper is addressed to astronomers who are not specialists in computer science. …”
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282
Conformal Array Pattern Synthesis and Activated Elements Selection Strategy Based on PSOGSA Algorithm
Published 2015-01-01“…The pattern synthesis and activated element selection for conformal array is investigated based on hybrid particle swarm optimization-gravitational search algorithm (PSOGSA) in this paper. …”
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283
A Note on Asymmetric Thick Branes
Published 2014-01-01“…We study in addition the nonpolynomial sine-Gordon like model, also constructed with the inclusion of a constant in the standard superpotential, and we investigate gravitational stability of the asymmetric brane. The results suggest robustness of the new braneworld scenarios and add further possibilities of the construction of asymmetric branes.…”
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284
Innovative approach for modelling gravity-induced signal path variations of VLBI radio telescopes
Published 2025-01-01“…Abstract Gravitationally induced deformation of the receiving unit of radio telescopes used for Very Long Baseline Interferometry (VLBI) distorts the observations and biases the deduced products. …”
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285
Tracking Star-forming Cores as Mass Reservoirs in Clustered and Isolated Regions Using Numerical Passive Tracer Particles
Published 2025-01-01“…These findings highlight the influence of turbulence strength on the mass and gravitational stability of cores.…”
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286
Structure of massive gauge/gravity scattering amplitudes, equivalence theorems, and extended double-copy with compactified warped space
Published 2025-02-01“…We present systematic formulations of the gauge theory equivalence theorem (GAET) and the gravitational equivalence theorem (GRET) for warped KK theories in R ξ gauge, where the GAET connects the scattering amplitudes of longitudinal KK gauge bosons to that of the corresponding KK Goldstone bosons and the GRET connects the scattering amplitudes of KK gravitons of helicity-zero (helicity-one) to that of the corresponding gravitational scalar (vector) KK Goldstone bosons. …”
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287
Statistical and Dynamical Decoupling of the IGM from Dark Matter
Published 2011-01-01“…Although the gravitational field in the universe is dominated by dark matter, cosmological observations show that the statistical properties of cosmic baryonic matter are significantly and systematically decoupled from that of the underlying dark matter. …”
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288
Modified Fermions Tunneling Radiation from Nonstationary, Axially Symmetric Kerr Black Hole
Published 2019-01-01“…Firstly, the motion equation of fermions is modified in the gravitational space-time. Based on the motion equation, the modified Hamilton-Jacobi equation has been obtained by a semiclassical approximation method. …”
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289
On Possible Reduction of Equilibrium Radius of a Neutron Star Influenced by Superstrong Magnetic Field
Published 2012-01-01“…They can be detected by gravitational red shift of their radiation.…”
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290
On destabilising quasi-normal modes with a radially concentrated perturbation
Published 2025-01-01“…The model is that of a small bump perturbation to the effective potential of linear axial gravitational waves on a Schwarzschild background, and our focus is on three different aspects of the instability: identifying and distinguishing between the two different types of instabilities studied previously in the literature, quantifying the size of the perturbations applied to the system and testing the validity of the pseudospectral numerical method in providing a convergent result for this measure, and finally, relating the size and other features of the perturbation to the degree of destabilisation of the spectrum.…”
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291
Analysis of the Conformally Flat Approximation for Binary Neutron Star Initial Conditions
Published 2017-01-01“…We illustrate the use of this approximation for orbiting neutron stars in the quasicircular orbit approximation to demonstrate the equation of state dependence of these initial conditions and how they might affect the emergent gravitational wave frequency as the stars approach the innermost stable circular orbit.…”
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292
Geometric Josephson junction
Published 2025-01-01“…Abstract In this work, we present a gravitational dual to a constriction Josephson junction constructed from the AdS/BCFT correspondence. …”
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293
Noether Gauge Symmetry of Dirac Field in (2 + 1)-Dimensional Gravity
Published 2015-01-01“…We consider a gravitational theory including a Dirac field that is nonminimally coupled to gravity in 2 + 1 dimensions. …”
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294
Middle to Late Jurassic pelagites and gravity mass flow deposits of a displaced Neotethyan margin: Microfacies and biostratigraphical studies in Northeast Hungary
Published 2024-01-01“…In the Bajocian to early Callovian interval the Recsk area was located at the toe of a coeval carbo nate platform, which provided gravitational mass flows reaching the investigated area. …”
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295
X-ray pulsed light curves of highly compact neutron stars as probes of scalar–tensor theories of gravity
Published 2024-12-01“…Abstract The strong gravitational potential of neutron stars (NSs) makes them ideal astrophysical objects for testing extreme gravity phenomena. …”
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296
Nongravitational Forces in Planetary Systems
Published 2025-01-01“…In exoplanetary systems and debris disks, nongravitational forces affect the lifetimes of circumstellar particles and feed refractory debris to the photospheres of the central stars. Unlike the gravitational force, which is a simple function of the well-known separations and masses of bodies, the nongravitational forces are frequently functions of poorly known or even unmeasurable physical properties. …”
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297
Matching and positivity beyond minimal coupling in effective theories of photons and gravitons
Published 2025-02-01“…The matter is allowed to have non-minimal electromagnetic and gravitational interactions. We construct the one-loop 4-photon and 4-graviton helicity amplitudes with matter in the loop carrying anomalous multipole moments, and we read off the Wilson coefficients in the effective theory below the matter particle mass. …”
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298
Influence of Lorentz Invariation Violation on Arbitrary Spin Fermion Tunneling Radiation in the Vaidya-Bonner Space-Time
Published 2020-01-01“…Considering a light dispersion relationship derived from string theory, quantum gravitational theory, and the Rarita-Schwinger equation in the nonstationary spherical symmetry space-time, we derive an accurately modified dynamic equation for fermions with arbitrary spin. …”
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299
How Can the Modified Dispersion Relation Affect Friedmann Equations?
Published 2014-01-01“…The appearance of the quantum gravitational effects in a very high energy regime necessitates some corrections to the thermodynamics of Friedmann-Robertson-Walker (FRW) universe. …”
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300
Study on the Design of Tall Building Escape Device based on Escapement Mechanism
Published 2016-01-01“…Through alternate engage of the escapement wheel and escapement fork,the escape device based on escapement mechanism can release uniformly gravitational potential energy of body to make the body land safely to the ground in a certain average speed. …”
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