A simple Hubble-like law in lieu of dark energy
arXiv:1401.2919
Abstract
Within the frame of the cold dark matter paradigm, a dark energy component of unknown origin is expected to represent nearly 70% of the energy of the Universe. Herein, a non-standard form of the Hubble law is advocated, with the aim of providing safe grounds on which alternative cosmologies could be developed. Noteworthy, it yields an age-redshift relationship which is consistent with available data. Together with a straightforward analysis of gamma-ray burst counts, it further suggests that the observable Universe has been euclidean and static over the last 12 Gyr. Although a non-standard distance-duality relation is then required for interpreting luminosity distances, the magnitude-redshift relationship obtained is compatible with type Ia supernovae data.
9 pages, 5 figures
References in corpus (13)
- Dark Energy and the Accelerating Universe
- Improved Cosmological Constraints from New, Old and Combined Supernova Datasets
- Improved Dark Energy Constraints from ~100 New CfA Supernova Type Ia Light Curves
- Hubble parameter measurement constraints on the cosmological deceleration-acceleration transition redshift
- The Hubble Constant: A Summary of the HST Program for the Luminosity Calibration of Type Ia Supernovae by Means of Cepheids
- HD 140283: A Star in the Solar Neighborhood that Formed Shortly After the Big Bang
- Cosmic Chronometers in the R_h=ct Universe
- Time Dilation in Type Ia Supernova Spectra at High Redshift
- We do not live in the R_h = c t universe
- Legacy data and cosmological constraints from the angular-size/redshift relation for ultra-compact radio sources
- UV surface brightness of galaxies from the local Universe to z ~ 5
- Constraints on the duality relation from ACT cluster data
- The Cold Spot in the Cosmic Microwave Background: the Shadow of a Supervoid