7 articles for “Cosmological Theories”

Research ArticleOpen accessIn the keywordsSTRINGENT LIMITS FOR THE MAGNETIC FIELD FROM EARLY UNIVERSE DYNAMOS IN RF2 COSMOLOGY WITH TORSIONL. C. Garcia de AndradeBamba et al. (2012) have obtained cosmological magnetic fields in teleparallel torsion theories of gravity that are not compatible with galactic dynamos. This result agrees with previous ones obtained by the author which shows Garcia de Andrade (1999) that anti-dynamo generalised theorem to torsion theories forbides such kind of dynamos to explain galactic magnetic fields of the order of µG. … …Physics International, Vol. 5, Issue 1 · 27 Mar 2014 · 7,854 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsCRITERIA FOR THE COMPLEXITY OF SUCCESSIVE ASTRONOMICAL PARADIGMSPanagiotis Papaspirou, Kostas Karamanos, Xenophon MoussasWe investigate the complexity of three successive astronomical paradigms in the science of Physics, namely the Ptolemaic paradigm, the Copernican paradigm and the Keplerian paradigm and mention briefly some characteristic facts about the colossal Newtonian paradigm. This complexity can be understood according to five criteria, as proposed by Thomas Kuhn, the father of the epistemological notion of the paradigm, as … …Physics International, Vol. 5, Issue 1 · 28 Mar 2014 · 8,295 accessesView PDF Cite

Research ArticleOpen accessIn the abstractA Brief Review on WIMPs in 331 Electroweak Gauge ModelsP.S. Rodrigues da SilvaIn this study we review the cold dark matter problem in the context of a class of models which are a simple extension of the electroweak standard model, where the gauge symmetry is dictated by the group structure, SU(3)c⊗SU(3)L⊗U(1)X. This model, in different versions, has been able to address many interesting facts not explained by the standard model. It would … …Physics International, Vol. 7, Issue 1 · 27 Oct 2015 · 13,036 accessesView PDF Cite

Research ArticleOpen accessIn the abstractON THE ABSENCE OF ANTIMATTER FROM THE UNIVERSE, DARK MATTER, THE FINE STRUCTURE PARAMETER, THE FLUCTUATIONS OF THE COSMIC MICROWAVE BACKGROUND RADIATION AND THE TEMPERATURE DIFFERENCE BETWEEN THE NORTHERN AND SOUTHERN HEMISPHERE OF THE UNIVERSEEmmanuil ManousosThe theory of selfvariations correlates five cosmological observations considered to be unrelated by the physical theories of the previous century. The absence of antimatter from the Universe, the Dark Matter, the slight variation of the fine structure parameter, the temperature fluctuations of the cosmic microwave background radiation and the temperature difference between the northern and southern hemisphere of the Universe … …Physics International, Vol. 5, Issue 1 · 28 Nov 2014 · 8,881 accessesView PDF Cite

Research ArticleOpen accessIn the abstractTransformity: The Dependence of the Laws of Physics on Higher-Dimensional Coordinate TransformationsPaul S. WessonIn unified field theories with more than four dimensions, the form of the equations of physics in spacetime depends in general on the choice of coordinates in higher dimensions. The reason is that the group of coordinate transformations in (say) five dimensions is broader than in spacetime. This kind of gauge dependence is illustrated by two examples: a cosmological model … …Space Science International, Vol. 1, Issue 2 · 10 Dec 2013 · 9,625 accessesView PDF Cite

Research ArticleOpen accessIn the abstractCosmological Data Could have a microscopic, not Macroscopic, CauseEmmanuil ManousosA slight continuous increase of the rest masses and the electric charges of material particles can justify quantum phenomena and the cosmological data. This increase can only occur in a strictly defined way: the law of selfvariations. The law of selfvariations condenses into one equation the totality of the cosmological data, as we observe them from the time of Hubble … …Space Science International, Vol. 1, Issue 1 · 20 Jun 2013 · 7,740 accessesView PDF Cite

Research ArticleOpen accessAll words, across the recordDECOUPLING BETWEEN TORSION AND MAGNETIC FIELDS IN BOUNCING COSMOLOGY AND GALACTIC DYNAMO SEEDSL. C. Garcia de Andrade, A. FerrandezRecently Salim et al. (2007), have shown that galactic dynamo seeds can be possibly attainable in bouncing cosmological models with QED Lagrangeans. In this study we generalise their result by include torsion of spacetime in bouncing cosmology. It is shown that by considering a semi-minimal photon-torsion coupling and a Lagrangean of the type RF2 it is possible to find a … …Physics International, Vol. 5, Issue 1 · 27 Mar 2014 · 7,925 accessesView PDF Cite