Cosmological Consequences of the Yukawa Potential Involvement in Gravitational and Electromagnetic Fields Interaction Evaluated by ENU Model

Model of Expansive Nondecelerative Universe (ENU) due to involving Vaidya metric makes it possible to localize the energy density of gravitational field. This its capability allows for answering several open questions and supporting (or contradicting) results obtained using different theoretical approaches. This paper is aimed to contributing to a solution of some cosmological problems, in particular those linked to the Yukawa potential consequences, independent way of dark matter estimation, ionospheric F2 layer behaviour, and cyclotron radiation.Comment: 14 pages, LaTeX, submitted to Spacetime and Substanc

Information, Expansive Nondecelerative Universe, and Superstring Theory

Stemming from relationships between a number of information describing a system and entropy content of the system it is possible to determine maximal cosmological time. The contribution manifests a compatibility of the superstring theory and the model of Expansive Nondecelerative Universe.Comment: 4 pages, LaTe

Cosmological Constant, Quintessence and Expansive Nondecelerative Universe

Recent observations of the Universe have led to a conclusion suppressing an up-to-now supposed deceleration of the Universe caused by attractive gravitational forces. Contrary, there is a renaissance of the cosmological member lambda and introduction of enigmatic repulsive dark energy in attempts to rationalize a would-be acceleration of the Universe expansion. It is documented that the model of Expansive Nondecelerative Universe is capable to offer acceptable answers to the questions on the Universe expansion, state equations of the Universe, the parameter omega, the cosmological member lambda without any necessity to introduce new strange kinds of matter or energy being in accord with the fundamental conservation laws and generally accepted parameters of the Universe.Comment: 6 pages, LaTe

Electromagnetic Influence on Gravitational Mass - Theory, Experiments, and Mechanism of the Solar Corona Heating

Based on the model of Expansive Nondecelerative Universe, the aim of the present contribution is to contribute to the theoretical rationalization of some experiments, in particular of those performed by Podkletnov and de Aquino and devoted to the gravitational mass cessation, to offer a mechanistic explanation of the Solar corona heating, and to propose an experiment to verify the explanation of the heating in the Earth conditions.Comment: 10 pages, LaTeX, submitted to Spacetime and Substanc

Formation of Complex Matter Structures and Mutual Relations Between the Mass of Elementary Particles

The model of Expansive Nondecelerative Universe leads to a conclusion stating that at the end of radiation era the Jeans mass was equal to the upper mass limit of a black hole and, at the same time, the effective gravitational range of nucleons was identical to their Compton wavelength. At that time nucleons started to exert gravitational impact on their environment which enabled to large scale structures become formed. Moreover, it is shown that there is a deep relationships between the inertial mass of various leptons and bosons and that such relations can be extended also into the realm of other kinds of elementary particles.Comment: 6 pages, LaTe

Energy and Momentum in Expansive Nondecelerative Universe

Incorporation of the Vaidya metric in the model of Expansive Nondecelerative Universe allows to precisely localize gravitational energy for weak fields and obtain the components of the Einstein energy-momentum pseudotensor for strong gravitational fields. The components are identical to those calculated by Virbhadra.Comment: 8 pages, LaTe

Black Holes - Estimation of Their Lower and Upper Mass Limits Stemming from the Model of Expansive Nondecelerative Universe

In this contribution, the thermodynamics of black holes is treated by the model of Expansive Nondecelerative Universe (ENU). Based on entropy considerations and localization of gravitational energy, estimation of both the lower and upper mass limits of black holes is given. Both mass limits are time dependent.Comment: 6 pages, LaTe

Wheeler-Feynman Absorber Theory Viewed by Model of Expansive Nondecelerative Universe

The present contribution documents the harmony of postulates and conclusions of Wheeler-Feynman absorber theory and the model of Expansive Nondecelerative Universe. A relationship connecting advanced electromagnetic waves and gravitational field quanta is rationalized.Comment: 6 pages, LaTe

An alternative method for calculating the energy of gravitational waves

In the expansive nondecelerative universe model, creation of matter occurs due to which the Vaidya metrics is applied. This fact allows for localizing gravitational energy and calculating the energy of gravitational waves using an approach alternative to the well established procedure based on quadrupole formula. Rationalization of the gradual increase in entropy of the Universe using relation describing the total curvature of space-time is given too.Comment: 4 pages, LaTe

Thermodynamics of Expansive Nondecelerative Universe

The present contribution deals with thermodynamic aspects of the model of Expansive Nondecelerative Universe. In this model, in the matter era a dependence T^CBR ~ E^CBR ~ a(exp -3/4) holds for the energy of cosmic background radiation, E^CBR and its temperature T^CBR, while the proportionality of the energy density epsilon^CBR to the gauge factor a can be expressed as epsilon^CBR ~ a(exp -3). The given relationships comply with experimental observations of the cosmic background radiation as well as with a surprising finding that the Universe expansion is not decelerated by gravitational forces. It is rationalized that the specific entropy is proportional to a(exp -1/4), i.e. it is gradually decreasing in time.Comment: 8 pages, LaTe