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Belavin A.M.,Perm State University | Krylasova N.B.,Perm State University | Ivanov V.A.,M. Akmullah Bashkir State Pedagogical University
European Journal of Science and Theology | Year: 2015

Archaeological materials indicate that Urals of the early medieval period can be considered as a part of the territory of historical ancestral home of the Magyars. After Hungarians moving to the west, Urals has long been a part of the Finno-Magyar ecumene, which can be considered as the legendary Magna Hungaria. © 2015, European Journal of Science and Theology. All right reserved. Source

Borisova V.,M. Akmullah Bashkir State Pedagogical University | Schaulov S.,Moscow State University
European Journal of Science and Theology | Year: 2015

In this article the dichotomy of perception of the novel „Idiot‟ in the context of the last novel „Brothers Karamazov‟ by F. M. Dostoyevsky is discussed. The researchers define its nature and origins of the ambiguous reception. The alternative perception of the novel „Idiot‟ and its main hero are determined by the author. According to the perceptive point of view the writer‟s text is the „space of freedom‟ for a reader. This fact is also defined by the strategy of the author. Dostoyevsky uses the device of a reader‟s „failed expectations‟ associated with the miracle of Christ‟s resurrection. © 2015, Ecozone, OAIMDD. All right reserved. Source

Potapov A.A.,Bashkir State University | Izmailov R.N.,M. Akmullah Bashkir State Pedagogical University | Nandi K.K.,North Bengal University
Physical Review D - Particles, Fields, Gravitation and Cosmology | Year: 2016

We study here, using the Mannheim-Kazanas solution of Weyl conformal theory, the mass decomposition in the representative subsample of 57 early-type elliptical lens galaxies of the Sloan Lens Advanced Camera for Surveys (SLACS) on board the Hubble Space Telescope. We begin by showing that the solution need not be an exclusive solution of conformal gravity but can also be viewed as a solution of a class of f(R) gravity theories coupled to nonlinear electrodynamics thereby rendering the ensuing results more universal. Since lensing involves light bending, we shall first show that the solution adds to Schwarzschild light bending caused by the luminous mass (M∗) a positive contribution +γR contrary to the previous results in the literature, thereby resolving a long-standing problem. The cause of the error is critically examined. Next, applying the expressions for light bending together with an input equating Einstein and Weyl angles, we develop a novel algorithm for separating the luminous component from the total lens mass (luminous+dark) within the Einstein radius. Our results indicate that the luminous mass estimates differ from the observed total lens masses by a linear proportionality factor across the subsample, which qualitatively agrees with the common conclusion from a number of different simulations in the literature. In quantitative detail, we observe that the ratios of luminous over total lens mass (f∗) within the Einstein radius of individual galaxies take on values near unity, many of which remarkably fall inside or just marginally outside the specified error bars obtained from a simulation based on the Bruzual-Charlot stellar population synthesis model together with the Salpeter initial mass function favored on the ground of metallicity [Grillo et al., Astron. Astrophys. 501, 461 (2009)]. We shall also calculate the average dark matter density ρ av of individual galaxies within their respective Einstein spheres. To our knowledge, the present approach, being truly analytic, seems to be the first of its kind attempting to provide a new decomposition scheme distinct from the simulational ones. © 2016 American Physical Society. Source

Izmailov R.,M. Akmullah Bashkir State Pedagogical University | Potapov A.A.,Bashkir State University | Filippov A.I.,Bashkir State University | Ghosh M.,North Bengal University | Nandi K.K.,North Bengal University
Modern Physics Letters A | Year: 2015

We investigate the stability of circular material orbits in the analytic galactic metric recently derived by Harko et al., Mod. Phys. Lett. A29, 1450049 (2014). It turns out that stability depends more strongly on the dark matter central density ρ0 than on other parameters of the solution. This property then yields an upper limit on ρ0 for each individual galaxy, which we call here ρ0upper, such that stable circular orbits are possible only when the constraint ρ0 ≤ ρ0upper is satisfied. This is our new result. To approximately quantify the upper limit, we consider as a familiar example our Milky Way galaxy that has a projected dark matter radius RDM∼180 kpc and find that ρ0upper ∼ 2.37 × 1011∼M; o ∼ kpc-3. This limit turns out to be about four orders of magnitude larger than the latest data on central density ρ0 arising from the fit to the Navarro-Frenk-White (NFW) and Burkert density profiles. Such consistency indicates that the Eddington-inspired Born-Infeld (EiBI) solution could qualify as yet another viable alternative model for dark matter. © 2015 World Scientific Publishing Company. Source

Potapov A.A.,Bashkir State University | Izmailov R.,M. Akmullah Bashkir State Pedagogical University | Mikolaychuk O.,Bashkir State University | Mikolaychuk N.,Bashkir State University | And 2 more authors.
Journal of Cosmology and Astroparticle Physics | Year: 2015

Recently, Harko et al. (2014) derived an approximate metric of the galactic halo in the Eddington inspired Born-Infeld (EiBI) gravity. In this metric, we show that there is an upper limit ρ 0upper on the central density ρ 0 of dark matter such that stable circular orbits are possible only when the constraint ρ 0 ρ 0upper is satisfied in each galactic sample. To quantify different ρ 0upper for different samples, we follow the novel approach of Edery & Paranjape (1998), where we use as input the geometric halo radius RWR from Weyl gravity and equate it with the dark matter radius RDM from EiBI gravity for the same halo boundary. This input then shows that the known fitted values of ρ 0 obey the constraint ρ 0 ρ 0upper (RWR)-2. Using the mass-to-light ratios giving α , we shall also evaluate ρ 0lower(α -1)MlumRWR-3 and the average dark matter density ρ lower. Quantitatively, it turns out that the interval ρ 0lowerρ 0 ρ 0upper verifies reasonably well against many dark matter dominated low surface brightness (LSB) galaxies for which values of ρ 0 are independently known. The interval holds also in the case of Milky Way galaxy. Qualitatively, the existence of a stability induced upper limit ρ 0upper is a remarkable prediction of the EiBI theory. © 2015 IOP Publishing Ltd and Sissa Medialab srl . Source

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