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Numerical Relativity for Gravitational Wave Source Modeling
The first direct detection of gravitational wave has been realized by LIGO in 2015. It opens a brand new window to observe our universe and initiates...
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The measurement and modeling of gravitational deformation for large radio telescope based on wavefront perturbation method
In this paper, the wavefront perturbation method based on power detection of radio sources is used to measure the surface error of the Tianma radio...
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Modeling of the Origin of Saturn’s Dense (Visible) Rings Taking into Account Gravitational and Magnetic Fields. The Tchernyi‒Kapranov Effect
AbstractA mathematical model is proposed for the origin of Saturn’s dense (visible) rings, which has been a mystery for 400 years since Galileo saw...
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Gravitational Waves from Nnaturalness
We study the prospects for probing the Nnaturalness solution to the electroweak hierarchy problem with future gravitational wave observatories....
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Gravitational Waves: An Historical Perspective
On September 14, 2015, the Earth was hit by a very brief and extremely weak signal, which was the only trace of a catastrophic cosmic event that took...
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Gravitational waves from composite dark sectors
We study under which conditions a first-order phase transition in a composite dark sector can yield an observable stochastic gravitational-wave...
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The Dynamics of Small Satellites with a Three-Axial Gravitational Damper
AbstractThe questions of the dynamics of the angular motion of nanosatellites with gravitational dampers are considered. The damper is a solid body...
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Non-coplanar gravitational lenses and the “communication bridge”
We investigate the propagation of light signals across multiple gravitational lenses, with particular emphasis on the “communication bridge” scenario...
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Gravitational self force from scattering amplitudes in curved space
We employ scattering amplitudes in curved space to model the dynamics of a light probe particle with mass m orbiting in the background spacetime...
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Gravitational anomaly detection using a satellite constellation: analysis and simulation
We investigate the utility of a constellation of four satellites in heliocentric orbit, equipped with accurate means to measure intersatellite...
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Modification of Gravitational Instability Criteria for Astrophysical Disks within Nonadditive Thermodynamics
AbstractIn contrast to several classical studies, in which gravitational instability criteria for astrophysical disks are derived within traditional...
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Extended gravitational vortex without dark matter
This paper analyzes, within the extended gravitoelectromagnetic (GEM) formulation, the equilibrium of a large scale gravitational system formed by...
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Gravitational partial-wave absorption from scattering amplitudes
We study gravitational absorption effects using effective on-shell scattering amplitudes. We develop an in-in probability-based framework involving...
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Gravitational Capture as a Possible Scenario Origin of the Moon
AbstractThe paper is devoted to the problem of the origin of the Moon. The discussed modern scenarios for the formation of the Earth–Moon system are:...
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A Multipole Representation for the Gravitational Field of Asteroid (433) Eros
AbstractFor asteroid (433) Eros, a multipole representation of the gravitational potential is determined up to multipoles of the fourth order. The...
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Self-gravitational dynamics within the inner Oort cloud
The formation of the Inner Oort Cloud (IOC)—a vast halo of icy bodies residing far beyond Neptune’s orbit—is an expected outcome of the solar...
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Gravitational Waves
Physics has known about and dealt with wave phenomena for a long time. In fact, Physics courses feature a variety of treatments of waves in fluids,...
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Impact of LIGO-Virgo black hole binaries on gravitational wave background searches
We study the impact of the black hole binary population currently probed by LIGO-Virgo on future searches for the primordial gravitational wave...
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Imprints of ultralight axions on the gravitational wave and pulsar timing measurement
The axion or axion-like particle motivated from a natural solution of strong CP problem or string theory is a promising dark matter candidate. We...