中文
相关论文

相关论文: The New Redshift Interpretation Affirmed

200 篇论文

A new framework for exploiting information about the renormalization group (RG) behavior of gravity in a dynamical context is discussed. The Einstein-Hilbert action is RG-improved by replacing Newton's constant and the cosmological constant…

高能物理 - 理论 · 物理学 2007-05-23 M. Reuter , H. Weyer

The best measure of the Universe should be done using a standard "ruler" at any redshift. Type Ia Supernovae (SN Ia) probe the universe up to z$\sim$1.5, while the Cosmic Microwave Background (CMB) primary anisotropies concern basically…

天体物理学 · 物理学 2009-11-10 G. Ghirlanda , G. Ghisellini , D. Lazzati , C. Firmani

$f(R)$-Gravity, a simple generalization of Einstein's General theory of Relativity has been considered in the context of Cosmology as one of the approaches to explain phenomena such as early-time inflation and late-time accelerated…

广义相对论与量子宇宙学 · 物理学 2026-01-06 Gahan Chattopadhyay , Soumitra Sengupta

The measurements of the Hubble constant reveal a tension between high-redshift (CMB) and low-redshift (distance ladder) constraints. So far neither observational systematics nor new physics has been successfully implemented to explain this…

宇宙学与河外天体物理 · 物理学 2018-05-31 Krzysztof Bolejko

We test and reject the claim of Segal et al. (1993) that the correlation of redshifts and flux densities in a complete sample of IRAS galaxies favors a quadratic redshift-distance relation over the linear Hubble law. This is done, in…

天体物理学 · 物理学 2009-10-28 Daniel Koranyi , Michael A. Strauss

The Einstein's equivalence principle and experiments, in which bodies and observers are in different G potentials, have been used to prove that the chain of hypothesis coming from assuming the absolute invariability of the bodies, after a…

天体物理学 · 物理学 2007-05-23 Rafael A. Vera

Of the first two relativistiv world models, only the one by de Sitter predicted redshifted spectra from far away astronomical objects. Slipher's redshifts therefore seemed to arbitrate against Einstein's model which made no such…

物理学史与哲学 · 物理学 2013-03-11 Harry Nussbaumer

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 investigate the cosmological evolution of the luminosity and redshift of FRBs. As is the case for all extragalactic sources, we are dealing with data that are truncated by observational selection effects, the most important being the…

宇宙学与河外天体物理 · 物理学 2025-08-05 Sujay Champati , Vahé Petrosian

In this work, we present a method for numerically solving the Friedmann equations of modified $f(\mathcal{G})$ gravity in the presence of pressureless matter. This method enables us to predict the redshift behaviour of the Hubble expansion…

广义相对论与量子宇宙学 · 物理学 2024-11-08 Santosh V. Lohakare , Soumyadip Niyogi , B. Mishra

We argue that our recent success in using our resummed quantum gravity approach to Einstein's general theory of relativity, in the context of the Planck scale cosmology formulation of Bonanno and Reuter, to estimate the value of the…

高能物理 - 唯象学 · 物理学 2015-10-28 B. F. L. Ward

We have previously shown that the type Ia supernovae data by Riess et al. match the prediction of the magnitude-redshift relation in the plasma-redshift cosmology. In this article, we also show that the recent SNLS data, which have a…

天体物理学 · 物理学 2007-05-23 Ari Brynjolfsson

We study cosmological constraints on the various accelerating models of the universe using the time evolution of the cosmological redshift of distant sources. The important characteristic of this test is that it directly probes the…

广义相对论与量子宇宙学 · 物理学 2015-03-13 Deepak Jain , Sanjay Jhingan

Using the Einstein-Hilbert approximation of asymptotically safe quantum gravity we present a consistent renormalization group based framework for the inclusion of quantum gravitational effects into the cosmological field equations. Relating…

高能物理 - 理论 · 物理学 2009-11-11 M. Reuter , F. Saueressig

Gamma-ray bursts (GRBs) have been regarded as standard candles at very high redshift for cosmology research. We have proposed a new method to calibrate GRB distance indicators with Type Ia supernova (SNe Ia) data in a completely…

宇宙学与河外天体物理 · 物理学 2010-04-22 Nan Liang , Puxun Wu , Shuang Nan Zhang

It has always been considered a serious error to treat the cosmological redshift as a Doppler velocity effect rather than the result of space expansion. It is demonstrated here that in practical terms this is not the case, and that the…

综合物理 · 物理学 2007-05-23 Alasdair Macleod

Cosmology faces a pressing challenge with the Hubble constant ($H_0$) tension, where the locally measured rate of the Universe's expansion does not align with predictions from the cosmic microwave background (CMB) calibrated with…

宇宙学与河外天体物理 · 物理学 2024-02-27 Rebecca Briffa , Celia Escamilla-Rivera , Jackson Levi Said , Jurgen Mifsud

The $\Lambda$CDM model is the current standard model in cosmology thanks to its ability to reproduce the observations. Its first observational evidence appeared from the type Ia supernovae (SNIa) Hubble diagram. However, there has been some…

宇宙学与河外天体物理 · 物理学 2019-05-01 Isaac Tutusaus , Brahim Lamine , Alain Blanchard

A recent paper by Martin and Schwarz [1] argues that the ``standard inflationary result" has been finally proven. The result itself is formulated as: ``the closer the inflationary epoch is to the de Sitter space-time, the less important are…

广义相对论与量子宇宙学 · 物理学 2007-05-23 L P Grishchuk

If we assume that we live in the center of a spherical inhomogeneous universe, we can explain the apparent accelerating expansion of the universe without introducing the unknown dark energy or modifying gravitational theory. Direct…

宇宙学与河外天体物理 · 物理学 2015-06-04 Kent Yagi , Atsushi Nishizawa , Chul-Moon Yoo