Results 21 to 30 of about 32,266 (262)
Particles, 2021 This paper shows that gravitational results of general relativity (GR) can be reached by using special relativity (SR) via a SR Lagrangian that derives from the corresponding GR time dilation and vice versa.
Spyridon Vossos +2 more
doaj +1 more source
An Attempt to Derive the Gravitational Potential [PDF]
Progress of Theoretical Physics, 1965 A model theory is proposed to introduce both the mass of the matter field and the repulsive gravitational potential between matters within the framework of Minkowski's space-time. In consideration of the expansion of universe, the conformal invariant equations for two coup led scalar fields are taken as starting equations.
openaire +2 more sources
The dynamical environment of the primary in the triple asteroid (45) Eugenia
Open Astronomy, 2020 We investigated the dynamical behavior in the potential of the primary in the triple asteroid (45) Eugenia with the calculation of the full gravitational potential caused by its 3D irregular shape.
Jiang Min, Ma Qingtian
doaj +1 more source
AIP Advances, 2021 An opposite polarity dusty plasma system (containing inertial positive as well as negative dust species and inertialess singly charged ion species) is considered.
Abdul Mannan +3 more
doaj +1 more source
Potential of a Spheroid with Generalized Exponential Density Distribution
Open Astronomy, 2015 The internal potential of an inhomogeneous layered spheroid with a small ellipticity and general exponential density distribution is derived in an analytical form.
Kondratyev B. P., Kireeva E. N.
doaj +1 more source
On the Influence of the Moment of Inertia of Gas on the Galactic Rotation Curves
Journal of Astronomy and Space Sciences, 2022 There are two models that explain the rotation curves of galaxies: dark matter, which gives the missing contribution to the gravitational potential of the standard theory of gravity, and modified theories of gravity, according to which the gravitational
Yuriy A. Portnov
doaj +1 more source
Evolution of the Potential in Cosmological Gravitational Clustering [PDF]
The Astrophysical Journal, 1996 The potential is a constant to linear order in cosmological gravitational clustering. In this Letter we present results of testing the conjecture, proposed by Pauls and Melott (1995), that the effect of nonlinear evolution on the potential can be better described by smoothing it on the scale of nonlinearity.
Melott, Adrian L. +2 more
openaire +2 more sources
Physics Letters B, 2022 We investigate the effect of peculiar velocities of inhomogeneities and the spatial curvature of the universe on the shape of the gravitating potential. To this end, we consider scalar perturbations of the FLRW metric.
Ezgi Canay +4 more
doaj +1 more source
Gravitational collapse in a constant potential bath [PDF]
Physical Review D, 2001 We analyse here the gravitational collapse of directed null radiation in a background with a constant potential such as one produced by a star system like galaxy in which the collapsing object is immersed. Both naked singularities and black holes are shown to be developing as the final outcome of the collapse.
Jhingan, S., Dadhich, N., Joshi, P. S.
openaire +2 more sources
Российский технологический журналObjectives. This paper investigates the gravitational potential of a viscoelastic planet moving in the gravitational field of a massive attracting center (star), a satellite and one or more other planets moving in Keplerian elliptical orbits relative to ...
А. V. Shatina, A. S. Borets
doaj +1 more source