| viXra.org > Astrophysics > 2608 |
 |
 |
| viXra.org > Astrophysics > 2608 |
|
|
[4] viXra:2608.0016 [pdf] submitted on 2026-08-04 17:10:30
Authors: Krrish Choudhary
Comments: 7 Pages.
The Initial Entropy Problem asks why the early universe began in an exceptionally low gravitational entropy state despite matter and radiation being at thermal equilibrium. Standard cosmology accepts Penrose's Past Hypothesis as a brute empirical fact, without a dynamical mechanism that enforces it. This paper presents a candidate Center Origin White Hole Cyclic Cosmology, built from thirteen explicit axioms, offered as an axiomatic framework, not a resolution of the problem it addresses. The model proposes that the Big Bang is the time-reversed quantum-gravity bounce of a single, monolithic universal black hole. Three axioms carry the model's real explanatory weight and are flagged plainly rather than hidden in notation: Axiom 9 stipulates an explicit exception to the Second Law of Thermodynamics at the transition; Axiom 11 stipulates repulsive anti-gravity that cannot be derived from time-reversal of the Einstein field equations and is grounded only in current untestability; Axiom 13 stipulates that dark energy is dynamical rather than a true cosmological constant, an explicit, falsifiable bet on an open question in dark energy research that current measurements do not support under a constant &Lambda. The paper derives the model's recollapse dynamics as an exact consequence of the Friedmann equation for a dust-dominated closed universe and shows explicitly where this derivation fails to match a universe dominated by dark energy. The framework does not derive low initial entropy from more fundamental principles; it relocates the Past Hypothesis to a named, falsifiable transition.
Category: Astrophysics
[3] viXra:2608.0015 [pdf] submitted on 2026-08-04 18:15:23
Authors: Herbert Weidner
Comments: 6 Pages.
Gravitational waves in the microhertz regime represent an unexplored window into slow dynamical processes in planetary interiors and the longu2011period tidal interactions within the Solar System. Jupiter, whose rotation period of 9.925 h is known with high precision, should generate a gravitational wave near 55.97 $mu$Hz if its mass distribution departs from perfect axial symmetry. Such a signal is far below the sensitivity of existing gravitationalu2011wave detectors and is strongly Doppleru2011shifted by the synodic Earth—Jupiter motion, making direct detection challenging.Using 20 years of barometric pressure data from DWD stations, we extract Jupiter’s gravitational wave through coherent demodulation of the phase modulations induced by Earth’s orbit and by the four Galilean moons. The recovered carrier frequency exhibits SNR $approx100$ and reveals a previously unknown longu2011term frequency drift associated with Jupiter’s deep interior. The modulation indices and phases of Io, Europa, Ganymede, and Callisto are stable across 752 independent realizations, demonstrating that Earth’s atmosphere responds coherently to microhertz gravitational forcing.The measured modulation indices exceed linearized Doppler predictions by a factor of 12.7, implying a propagation speed of $vapprox 0.08 c$ for the wave along the Jupiter—Earth path. Because this path lies entirely within the Sun’s gravitational potential, our results suggest that microhertz gravitational waves may experience dispersive propagation in strongly curved spacetime. No additional longu2011term phase modulations were detected. These findings open a new observational channel for studying gravitational phenomena in the Solar System at ultrau2011low frequencies.
Category: Astrophysics
[2] viXra:2608.0013 [pdf] submitted on 2026-08-03 09:25:56
Authors: Holger Döring
Comments: 16 Pages.
Galactic rotation-curves shows in many spiral- and dwarfgalaxies deviations in movement from the expectation of baryonic matter alone. Usually these deviations are explained by supposing a domination of a "dark-matter" halo. Here, in this treatise an alternative scenario is discussed in the sense of Ockams Razor: not to speculate new things to safe the phenomena but to try an explanation of observed phenomena by very well-known contributions. Therefore a global galactic magnetic plasma-halo is able by supposing a magnetic pressure and stress-term to deliver an additional dynamical term to movement of stars. This model doesn’t substitute gravity but elaborates the eeffective dynamics by magnetohydrodynmical effects (MHD).
Category: Astrophysics
[1] viXra:2608.0005 [pdf] submitted on 2026-08-01 07:11:58
Authors: Manuel Abarca Hernandez
Comments: 10 Pages.
This work presents the first application of the Dark Matter by Quantum Gravitation (DMbQG) theory to the study of dark matter (DM) at cosmological scales. In Section 2.1, the first Friedmann equation is introduced within the DMbQG framework. A key feature of this approach is the explicit separation between baryonic matter density and dark matter density. It is shown that, in this theory, the dark matter density evolves with the cosmological scale factor, a, following a power-law exponent of −2.5, in contrast to the ΛCDM model, where total matter density is not differentiated and scales as a with exponent -3.In Section 2.2, the second Friedmann equation and the cosmological conservation equation are presented. From the latter, the equation-of-state parameter w is derived for baryonic matter, dark matter, and dark energy. A novel result of this work is that, for dark matter, w = −1/6, which implies that its effective density is one-half of its physical density.In Section 3, the age of the Universe is calculated first within the standard ΛCDM model and subsequently using the DMbQG framework. A central result is that the age integral obtained with DMbQG is approximately 11.5% larger than that derived from ΛCDM. This difference allows for consistency with the Hubble constant measured by the SHOES project, based on Type Ia supernovae in the local Universe, with Hu2080 = 73 km/s /Mpc, yielding an age of 14.7 Gyr. In contrast, applying this same value within ΛCDM leads to an age of 12.8 Gyr, in tension with the oldest known astrophysical objects. Consequently, ΛCDM relies on the Planck Collaboration value, Hu2080 = 67.4 km/ s/Mpc, which gives an age of 13.85 Gyr.Given that the SHOES method provides a more direct measurement of the present-day expansion rate, while the Planck value is inferred from early-Universe data (cosmic microwave background), the former may better represent the current Hubble parameter. The Hubble tension remains one of the major open problems in cosmology, and this work suggests that the DMbQG framework may offer a partial resolution by reconciling a higher Hu2080 value with a consistent estimate of the Universe’s age.
Category: Astrophysics
| Third-Party Links: |
|