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| viXra.org > Astrophysics > 2505 |
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[10] viXra:2505.0181 [pdf] replaced on 2026-01-09 13:29:54
Authors: S. A. Larin
Comments: 7 Pages.
It is shown that the off-shell renormalization schemes for subtraction of ultraviolet divergences in Quantum Field Theory produce zerofor sums of perturbative corrections to physical quantities when all perturbation orders are taken into account. That is the off-shel renormalization schemes are in this sense unphysical. In this connection it is desirable to develope on-shell renormalization schemes for different quantum theories.
Category: Astrophysics
[9] viXra:2505.0145 [pdf] replaced on 2025-09-09 15:20:48
Authors: Nicolas Poupart
Comments: 43 Pages.
This paper demonstrates that gravitational potential energy (E = −GmM/d) accounts for the phenomenon commonly attributed to dark matter, by applying the mass-energy equivalence relation (E = mc2). No additional assumptions are made beyond the principle of volume conservation, ensuring that the gravitational _eld remains conservative and uninfluenced by forces other than gravity. We develop a straightforward equation and algorithm to accurately compute the potential energy of a stellar system. The theoretical implications of this model are explored with respect to energy production by various types of stars and black holes in galaxies. The model is empirically tested against the SPARC database comprising 175 galaxies to assess its validity. We continue by verifying that our model reproduces the total galactic and extragalactic dark mass and is compatible with ΛCDM cosmology. Then we demonstrate that the experimental adequacy of our model reaches 5σ. We derive the logical consequences of the potential energy stored in the gravitational field; a claim validated by SPARC data. We conclude that, to ensure the consistency of our model across the entire cosmic history, it is necessary to impose the conservation of the cosmological energy balance.
Category: Astrophysics
[8] viXra:2505.0144 [pdf] replaced on 2025-09-09 21:00:54
Authors: Nicolas Poupart
Comments: 44 Pages.
This paper demonstrates that gravitational potential energy (E = −GmM/d) accounts for the phenomenon commonly attributed to dark matter, by applying the mass-energy equivalence relation (E = mc2). No additional assumptions are made beyond the principle of volume conservation, ensuring that the gravitational _eld remains conservative and uninfluenced by forces other than gravity. We develop a straightforward equation and algorithm to accurately compute the potential energy of a stellar system. The theoretical implications of this model are explored with respect to energy production by various types of stars and black holes in galaxies. The model is empirically tested against the SPARC database comprising 175 galaxies to assess its validity. We continue by verifying that our model reproduces the total galactic and extragalactic dark mass and is compatible with ΛCDM cosmology. Then we demonstrate that the experimental adequacy of our model reaches 5σ. We derive the logical consequences of the potential energy stored in the gravitational field; a claim validated by SPARC data. We conclude that, to ensure the consistency of our model across the entire cosmic history, it is necessary to impose the conservation of the cosmological energy balance.
Category: Astrophysics
[7] viXra:2505.0134 [pdf] submitted on 2025-05-20 20:17:20
Authors: Seojoon Lee
Comments: 5 Pages. (Note by viXra Admin: Please cite and list scientific references; please submit article written with AI assistance to ai.viXra.org)
We present a novel classical field theory in which the gravitational field g is dynamically coupled to an auxiliary expansion field D, forming a unified framework capable of replicating the physical roles of both dark matter and dark energy.
Category: Astrophysics
[6] viXra:2505.0121 [pdf] submitted on 2025-05-19 21:01:38
Authors: Joao Carlos Holland De Barcellos
Comments: 7 Pages.
We will use the "Decreasing Universe" (D.U.) theory to estimate the age of the Universe based on the average wavelength of the Cosmic Microwave Background (CMB) radiation.
Category: Astrophysics
[5] viXra:2505.0118 [pdf] submitted on 2025-05-19 01:50:40
Authors: Wang Yi
Comments: 5 Pages.
This study is dedicated to exploring the potential unknown substances in space and their relationships with the gravitational mechanism. A series of rotating coupling experiments were conducted in a high - vacuum environment. After effectively eliminating the influence of residual gas molecules, by using couplings made of various materials, the motion states of feathers and dandelion fluffs around the couplings were systematically observed. The experimental results show that couplings of different materials can cause the fluff on feathers to have directional displacements, which are related to the vortex direction generated by the rotation of the couplings.
Category: Astrophysics
[4] viXra:2505.0078 [pdf] submitted on 2025-05-13 20:43:32
Authors: Tobi Adesola
Comments: 9 Pages.
We propose Axion-Like Scalar Gravity (ALSG), a minimal extension of ΛCDM introducing a single axion-like particle (ALP) from the string-theoretic axiverse, active at late times. Inspired by quantum oscillatory dynamics, ALSG features an ALP with mass mϕ ≈10−14 eV, oscillating at fϕ ≈2.4 Hz, coupling conformally to baryonic matter via an effective field theory (EFT) framework with broken scale invariance. This screened coupling modulates the Hubble expansion and gravitational potentials, producing sub-percent oscillatory signatures in galaxy clustering, CMB residuals, and pulsar timing residuals. With three parameters and full compatibility with General Relativity (GR), ALSG addresses Hubble (H0) and S8 tensionswhile preserving early-universe consistency. Predictions are testable with Euclid, Si-mons Observatory, and NANOGrav, offering a falsifiable model grounded in particlephysics and cosmology, with multi-probe consistency to resolve degeneracies.
Category: Astrophysics
[3] viXra:2505.0063 [pdf] submitted on 2025-05-10 20:29:57
Authors: Clark M. Thomas
Comments: 7 Pages. (Note by ai.viXra.org Admin: Please use smaller fonts: e.g., 12 points in Times New Roman as repeated told previously!)
Astrophysicists often speak of three types of blackholes: stellar, intermediate, and supermassive.There is a fourth category in one-universe theories, but has not yet been detected by our instruments. This essay will examine more possibilities for primordial black holes, within the actual four-dimensional multiverse.
Category: Astrophysics
[2] viXra:2505.0049 [pdf] submitted on 2025-05-08 19:39:23
Authors: Ayaan Mehta
Comments: 8 Pages. (Note by viXra Admin: Please submit article written with AI assistance to ai.viXra.org)
Conventional space craft are limited in their ability to deliver high energy missions by a fundamental reliance on fuel mass. However, this constraint can in principle be dealt with class of propellantless propulsion system which extract momentum from the flux of photons that are continually emitted from the Sun - like a solar sail. Solar sails are able to provide a large amount of ∆V for long duration and high energy missions, also providing continuous acceleration. Modern solar sails are also equipped with Thrust Vector Controlling (TVC) mechanism. Even with an edge over conventional spacecraft, there is one difficulty that arises with the use of solar sails - a problem termed "The Orientation Problem". "The Orientation Problem" addresses the idea of how changing the yaw angle of a sail to achieve a high impulse, changes the eccentricity and inclination of an orbit by providing ∆V to the radial and normal vectors. This problem, if encountered, can lead to vast changes in orbital characteristics (inclination, eccentricity) which hinders the transfer trajectory and increases the intercept time and ∆V requirement. In this paper we will compute and analyze a number of different transfers for a solar sail at different orbital inclinations and yaw angle (angle between the normal and sail-sun line) for which we completely mitigate(in some cases) or account for(in majority cases) for the "Orientation Problem" to find the most optimum orbital inclination and a particular yaw angle at the point of the burn for the specific inclination which gives the best combination of mission duration and energy requirement for a transfer from Earth to Venus using a sail.
Category: Astrophysics
[1] viXra:2505.0020 [pdf] submitted on 2025-05-04 01:50:22
Authors: Bittu Kumar
Comments: 10 Pages.
This paper introduces a new experimentally supported framework for understanding gravity, proposing that it originates from atomic nuclei rather than from mass or the curvature of space-time. Unlike Newtonian and Einsteinian models—which define gravity as a mass-based attraction or the result of space time deformation—this theory presents gravity as an electromagnetic force generated by positively charged nuclei. It introduces the concept of a "Nuclear Polarization Force" to explain gravitational interactions between nuclei and other bodies—neutral, negatively charged, or positively charged—through polarization and charge dynamics. To validate this theory, an experiment was conducted demonstrating measurable weight differences in objects when charged positively or negatively, compared to their neutral state. The results suggest that gravitational force is influenced not only by mass but also by electric charge. This model aims to unify gravitational behaviour across atomic, planetary, and cosmic scales, offering a new perspective on the dynamics of the solar system, black holes, and the expansion of the universe. By redefining gravity in electromagnetic terms, this research addresses existing gaps in cosmology and quantum gravity, potentially opening new pathways in fundamental physics.
Category: Astrophysics
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