中文
相关论文

相关论文: Is the Time a Dimension of an Alien Universe? (thi…

200 篇论文

The redshift of galaxies is in general explained by the expansion of space. The flat space time theory of gravitation suggests an additional interpretation. In this theory gravitation is explained analogously to Maxwell's theory on a flat…

综合物理 · 物理学 2007-05-31 Walter Petry

This paper presents alternative ideas on the physics of time that lead to a new interpretation of cosmological redshifts. These ideas are based on the close relationship between the speed of time and entropy processes in our universe. I…

天体物理学 · 物理学 2009-11-06 Vladimir I. Garaimov

In cosmology one labels the time t since the Big Bang in terms of the redshift of light emitted at t, as we see it now. In this Note we derive a formula that relates t to z which is valid for all redshifts. One can go back in time as far as…

广义相对论与量子宇宙学 · 物理学 2009-11-11 Moshe Carmeli , John G. Hartnett , Firmin J. Oliveira

The first and most compelling evidence of the universe's expansion was, and continues to be, the observed redshift of spectra from distant objects. This paper plays "devil's advocate" by providing an alternative explanation with elementary…

综合物理 · 物理学 2008-05-10 David Schuster

The coincidence problem of late cosmic acceleration constitutes a serious riddle with regard to our understanding of the evolution of the Universe. Here we argue that this problem may someday be solved -or better understood- by expressing…

天体物理学 · 物理学 2008-11-26 Sergio del Campo , Ramon Herrera , Diego Pavon

Relativistic aberration influences apparent luminosities of objects moving with relativistic relative velocities. The superluminosity or dimming of incoming or receding jets ejected from Active Galactic Nuclei is believed to be the…

天体物理学 · 物理学 2007-05-23 Oleg Semyonov

When the proper time of general relativity is adjusted to reflect the possible existence of higher dimensions, small dynamical effects appear in spacetime of the sort usually associated with the cosmological constant, Hubble's Law and…

综合物理 · 物理学 2010-11-15 Paul S. Wesson

The large-scale dynamics of the universe is generally described in terms of the time-dependent scale factor $a(t)$. To make contact with observational data, the $a(t)$ function needs to be related to the observable $z(r)$ function, redshift…

综合物理 · 物理学 2025-06-17 Jan Stenflo

The standard interpretation of the observed redshifted spectra and luminosities towards distant astrophysical objects is that the universe is expanding, an inference which is found to be consistent with other cosmological probes as well.…

综合物理 · 物理学 2013-08-06 Meir Shimon

Relying on the obtained results in Rev.[1](physics/0505035), we derive the formula relating the red-shift of light signals coming from distant galaxies to the distance of these galaxies from us and the time of detecting of these light…

综合物理 · 物理学 2007-05-23 Jian-Miin Liu

Almost a century ago, Hubble discovered the cosmological redshift of extragalactic objects. The Friedmann-Lema\^itre-Robertson-Walker (FLRW) metric was presented as a solution of Einstein's field equations for a homogeneous and isotropic…

宇宙学与河外天体物理 · 物理学 2025-02-25 Juan De Vicente

Cosmic observations strongly support a time varying scenario for matter/space. On the other hand, so far, observations at solar system scale failed to identify any time variation on matter/space characteristics. To explain both results it…

天体物理学 · 物理学 2007-05-23 Alfredo Gouveia Oliveira , Rodrigo de Abreu

With the next generation of big telescopes such as the ELT and SKA it might become possible to measure changes in the expansion rate of the Universe in real time by measuring the change of the redshifts of a large number of galaxies over a…

宇宙学与河外天体物理 · 物理学 2025-12-02 Nico Roos , Eric Sluimer , Bert van den Broek

We review the idea, due to Einstein, Eddington, Hoyle and Ballard, that time is a subjective label, whose primary purpose is to order events, perhaps in a higher-dimensional universe. In this approach, all moments in time exist…

综合物理 · 物理学 2015-05-13 Paul S. Wesson

Redshift drift is the phenomenon whereby the observed redshift between an emitter and observer comoving with the Hubble flow in an expanding FLRW universe will slowly evolve -- on a timescale comparable to the Hubble time. In a previous…

广义相对论与量子宇宙学 · 物理学 2024-04-03 Francisco S. N. Lobo , José Pedro Mimoso , Jessica Santiago , Matt Visser

We apply the property of selfsimilarity that corresponds to the concept of a fractal universe, to the dimension of time. It follows that any interval of time, given by any tick of any clock, is proportional to the age of the universe. The…

综合物理 · 物理学 2009-05-26 Antonio Alfonso-Faus

We present numerical evidence that fictitious diffusing particles in the causal dynamical triangulation (CDT) approach to quantum gravity exceed the speed of light on small distance scales. We argue this superluminal behaviour is…

广义相对论与量子宇宙学 · 物理学 2015-09-14 D. N. Coumbe

The observed cosmic acceleration was attributed to an exotic dark energy in the framework of classical general relativity. The dark energy behaves very similar with vacuum energy in quantum mechanics. However, once the quantum effects are…

综合物理 · 物理学 2015-06-17 M. J. Luo

We investigate late time acceleration of the universe in higher dimensional cosmology. The content in the universe is assumed to exert pressure which is different in the normal and extra dimensions. Cosmologically viable solutions are found…

广义相对论与量子宇宙学 · 物理学 2011-09-29 Isha Pahwa , Debajyoti Choudhury , T. R. Seshadri

We consider a hypothetical possibility of the variability of light velocity with time and position in space which is derived from two natural postulates. For the consistent consideration of such variability we generalize translational…

天体物理学 · 物理学 2016-08-30 Sergey S. Stepanov
‹ 上一页 1 2 3 10 下一页 ›