Abstract
AbstractRecent astrophysical observations hint toward the need for an extended theory of gravity to explain puzzles presented by the standard cosmological model such as the need for dark matter and dark energy to understand the dynamics of the cosmos. This paper investigates the effect of a repulsive central universal force field on the behavior of celestial objects. Negative tidal effect on the solar and galactic orbits, like that experienced by Pioneer spacecrafts, was derived from the central force and was shown to manifest itself as dark matter and dark energy. Vertical oscillation of the sun about the galactic plane was modeled as simple harmonic motion driven by the repulsive force. The proposed universal field was used to infer the shape of dark matter halos as generated from a planar component of the universal force and to explain galactic warp, galactic halo density, and galactic rotation curves. It was found that the repulsive field addition to Newton’s gravity mimics the Yukawa potential correction employed by many current gravitational theories that modify gravity.
Highlights
The success of the standard cosmological model (ΛCDM) [1, 2] has been marred by a number of puzzling large scale cosmological observations [3, 4] which hint toward the need for modifications of the model
Recent astrophysical observations hint toward the need for an extended theory of gravity to explain puzzles presented by the standard cosmological model such as the need for dark matter and dark energy to understand the dynamics of the cosmos
This paper investigates the effect of a repulsive central universal force field on the behavior of celestial objects
Summary
The success of the standard cosmological model (ΛCDM) [1, 2] has been marred by a number of puzzling large scale cosmological observations [3, 4] which hint toward the need for modifications of the model. It is suggested that in a mass-antimass universe, the result of the existence of nearby aggregates of antimass could be a repulsive gravitational force field and would materialize as acceleration in the radial direction from the antimass aggregates, which presents a strong candidate to dark matter and dark energy, assuming antimass and normal mass gravitationally repel each other. In this scenario, the repulsive universal field serves as the source to the Yukawa field, or fifth force, that acts as a correction to the Newtonian classical potential in the mentioned gravitational theories. The sun-orbiting objects, as in the case of the Pioneer spacecraft, feel negative tidal forces in all directions due to their orbital plane tilting relative to the tangential plane of the universal concentric shell at the location of the sun with varying magnitudes producing a bulge toward the sun as opposed to that of the normal positive tidal effect on earth by the sun and the moon
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