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Current approaches to the problem of inertia attempt to explain the inertial properties of matter by expressing the inertial mass appearing in Newton's second law of motion in terms of some other more fundamental interaction. One…

General Physics · Physics 2007-05-23 C. T. Ridgely

We present a theory of non-solar cosmic rays (CRs) in which the bulk of their observed flux is due to a single type of CR source at all energies. The total luminosity of the Galaxy, the broken power-law spectra with their observed slopes,…

High Energy Physics - Phenomenology · Physics 2009-09-29 Arnon Dar , Alvaro De Rujula

After the first prediction to expect geodetic precession in binary pulsars in 1974, made immediately after the discovery of a pulsar with a companion, the effects of relativistic spin precession have now been detected in all binary systems…

Astrophysics of Galaxies · Physics 2010-08-31 Michael Kramer

Meteorites, and in particular primitive meteorites (chondrites), are irreplaceable probes of the solar protoplanetary disk. We review their essential properties and endeavour to place them in astrophysical context. The earliest solar system…

Earth and Planetary Astrophysics · Physics 2024-09-12 Emmanuel Jacquet , Cornelis Dullemond , Joanna Drążkowska , Steven Desch

The idea that a background of invisible material pervades the whole universe is as old as the history of natural philosophy. Modern particle physics and cosmology support that idea and identify in the cosmic vacuum the ultimate source of…

High Energy Physics - Phenomenology · Physics 2007-05-23 A. Aurilia , E. Spallucci

Radiation symmetry is briefly reviewed, along with its historical, experimental, computational, and theoretical relevance. A sketch of the proof of a theorem for radiation zeros is used to highlight the connection between gauge-boson…

High Energy Physics - Theory · Physics 2009-10-28 Robert W. Brown

A model for gravitational collapse where the event horizon is a quantum critical phase transition is extended to provide an explanation for the origin of the observable universe, where the expanding universe that we observe today was…

General Relativity and Quantum Cosmology · Physics 2016-02-09 George Chapline , James Barbieri

For the past forty years the search for dark matter has been one of the primary foci of astrophysics, although there has yet to be any direct evidence for its existence (Porter et al. 2011). Indirect evidence for the existence of dark…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 F. Elliott Koch , Angus H. Wright

We present a scenario in which a remarkably simple relation linking dark matter properties and neutrino masses naturally emerges. This framework points towards a low energy theory where the neutrino mass originates from the existence of a…

High Energy Physics - Phenomenology · Physics 2011-07-19 C. Boehm , Y. Farzan , T. Hambye , S. Palomares-Ruiz , S. Pascoli

The present work is aimed to explain why we started to consider Vibrating Rays Theory (VRT) as a viable representation of nature, and to elaborate some of its consequences. In 1846 Faraday introduced the concept of vibrating rays, in which…

Classical Physics · Physics 2019-12-03 Luis Bilbao , Luis Bernal , Fernando Minotti

Are the stellar-mass merging binary black holes, recently detected by their gravitational wave signal, of stellar or primordial origin? Answering this question will have profound implications for our understanding of the Universe, including…

Cosmology and Nongalactic Astrophysics · Physics 2020-05-27 Giulio Scelfo , Nicola Bellomo , Alvise Raccanelli , Sabino Matarrese , Licia Verde

I discuss a theory of non-solar cosmic rays (CRs) based on a single type of CR source at all energies. All observed properties of CRs are predicted in terms of very simple and completely `standard' physics. The source of CRs is extremely…

High Energy Physics - Phenomenology · Physics 2008-11-26 A. De Rujula

We discuss cosmological models for an eternal universe. Physical observables show no singularity from the infinite past to the infinite future. While the universe is evolving, there is no beginning and no end - the universe exists forever.…

General Relativity and Quantum Cosmology · Physics 2014-08-27 C. Wetterich

The evidence of the phenomenon for which, in galaxies, the gravitating mass is distributed differently than the luminous mass, increases as new data become available. Furthermore, this discrepancy is well structured and it depends on the…

Astrophysics of Galaxies · Physics 2019-03-11 Paolo Salucci

There is a strong decrease in scatter in the black hole mass versus bulge luminosity relationship with increasing luminosity and very little scatter for the most luminous galaxies. It is shown that this is a natural consequence of the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 C. Martin Gaskell

Theories with varying gravitational constant $G$ have been studied since long time ago. Among them, the most promising candidates as alternatives of the standard General Relativity are known as scalar-tensor theories. They provide…

General Relativity and Quantum Cosmology · Physics 2009-10-31 Diego F. Torres

The field equations following from a Lagrangian L(R) will be deduced and solved for special cases. If L is a non-linear function of the curvature scalar, then these equations are of fourth order in the metric. In the introduction we present…

General Relativity and Quantum Cosmology · Physics 2008-11-26 H. -J. Schmidt

Compact objects observed via gravitational waves are classified as black holes or neutron stars primarily based on their inferred mass with respect to stellar evolution expectations. However, astrophysical expectations for the lowest mass…

High Energy Astrophysical Phenomena · Physics 2025-10-29 Jacob Golomb , Isaac Legred , Katerina Chatziioannou , Adrian Abac , Tim Dietrich

In the past years a wealth of observations has unraveled the structural properties of the Dark and Luminous mass distribution in spirals. These have pointed out to an intriguing scenario not easily explained by present theories of galaxy…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 Paolo Salucci , Christiane Frigerio Martins

Suppose, the Universe comes into existence (as classical spacetime) already with an empty spherically symmetric macroscopic wormhole present in it. Classically the wormhole would evolve into a part of the Schwarzschild space and thus would…

General Relativity and Quantum Cosmology · Physics 2009-11-11 S. Krasnikov
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