The XXI century cosmology

LA COSMOLOGIA DEL SIGLO XXI

Presentation:

The purpose of this website is to present a summarized and pedagogical vision of current Cosmology, starting from the Big Bang Theory but emphasizing the observable aspects of the Dynamics of the Universe. In order to reinterpret the data to replace the paradigm of the "elusive" non-baryonic dark matter with a new paradigm: the large-scale modification of Newtonian gravitation.

Presentación:

El propósito de este sitio web es presentar una visión resumida y pedagógica de la Cosmología actual, partiendo de la Teoría del Big Bang pero haciendo énfasis en los aspectos observables sobre la dinámica del universo. Con la finalidad de reinterpretar los datos para reemplazar el paradigma de la "elusiva" materia oscura no bariónica por un nuevo paradigma: la modificación gran escala de la gravitación Newtoniana.

Cosmology without "darkness"

The peculiarities of the inverse square law of Newtonian gravity in standard Big Bang Cosmology are discussed. We take a heterodox approach to the ΛFRW Cosmology starting from the modification of Newtonian gravity by explicitly incorporating Mach's Principle through an additional term large-scale in the gravitation as the inverse Yukawa-like field; the source of this field is the ordinary baryonic matter, and represents the large-scale contribution of gravity. The results show that at the after of the matter-radiation decoupling, the distribution of matter at scales greater than 10Mpc contributes with an inverse Yukawa-like field, in agreement with astronomical and laboratory observables: resulting null in the inner solar system, weakly attractive in ranges of interstellar comoving distances, very attractive in comoving distance ranges comparable to the clusters of galaxies, and repulsive in cosmic scales. This additional term explains dark energy, removes the incompatibility between the density of matter and the flatness of the universe; allows the theoretical deduction of the Hubble-Lemaitre Law, and the Hubble parameter as . Also predicts a graviton mass of at least 10^-64 kg. Additionally to discuses other relevant astrophysics consequences: Birkhoff Theorem, Virial Theorem, the missing mass of Zwicky, Jeans masses, angular diameters distance distributions, gravitational lenssing, the BAO and important contribution of the gravitational redshift in AGN. Also we show the crude explanations of Pioneer anomaly. It is concluded that the dark energy and the missing cold dark mass can be approached with the usual physics as the large-scale modification of the Inverse Square Law of Newton Gravity.

Keywords: Mach's Principle; Dark Matter; Dark Energy; gravity; graviton mass; LFRW cosmology; Hubble-Lemaitre Law. AGN: Gravitational redshift. Pioneer anomaly

1 Introduction and overview

The purpose of this work is to deduce a possible modification of the Law of Gravitation that meets these requirements, that is, that all particles with nonzero rest mass, is subject gravitational inverse-square law, plus an additional term that varies with the comoving distance. This complementary contribution to the inverse-square law, would be caused by distribution at great scale of the baryonic mass, in the sense of Mach's principle. This inverse Yukawa-like Potential (Falcon 2013, Falcon & Aguirre 2014, Falcon 2021), would be null in very near solar system, slightly attractiveness in ranges of interstellar distances, very attractiveness in distance ranges comparable to galaxies cluster and repulsive to cosmic scales .

2. The Model: Inverse Yukawa-like field

The basic ideas of the cosmological model are raised; starting with the phenomenology and physical arguments (2.1) followed by consistency with Eövos-type experiments and the MoND-Milgrom formalism (2.2). In subsection 2.3 to show a brief derivation of the U_YF field during decoupling of radiation from matter in the early universe, then the estimation of the graviton mass (2.4) and ends with a discussion of Birkhoff's theorem and general description (2.5).

3 Result: Cosmological consequences.

The cosmological consequences of the inclusion of a large-scale term in the Newtonian law of gravitation are analyzed. For this, a ΛFRW -Cosmology model is solved where the cosmological constant is obtained from the expression of the U_YF field at comoving scales of the order of tens of megaparsec(3.1) and it is shown that it avoids the incompatibility between the observed density of material and the flatness of the universe without summoning cold dark matter (3.2). In subsection (3.3) the Hubble-Lemaître's Law is derived, followed by the discussion of the Hubble parameter with respect to the observations (3.4) and the Age of the Universe (3.5); all this before showing an understandable reinterpretation of Dark energy in the last subsection (3.6)

4 Discussion: Astrophysical Implications

The inclusion of an additional term in the Law of Gravitation, at scales larger than tens of parsecs, involves the analysis and discussion of a plethora of astrophysical problems such as Angular Diameter Distance Distributions (4.1), The Virial Theorem (4.2), the Kepler's third law in globular clusters and rotation curves (4.3), the Arp controversy and gravitational redshift (4.4), the Jean length and mass (4.5), the gravitational lensings (4.6), the BAO and CMB-anisotropies (4.7) and the Pioneer anomaly (4.8). In each of them, observable predictions are made that will allow the proposed model to be verified and/or the solution to important and controversial questions in current astrophysics is shown.