Carmeli's Cosmology Fits Data for an Accelerating and Decelerating Universe Without Dark Matter or Dark Energy
- 59 Downloads
A new relation for the density parameter Ω is derived as a function of expansion velocity υ based on Carmeli's cosmology. This density function is used in the luminosity distance relation D L. A heretofore neglected source luminosity correction factor (1 − (υ/c)2)−1/2 is now included in D L. These relations are used to fit type Ia supernovae (SNe Ia) data, giving consistent, well-behaved fits over a broad range of redshift 0.1 < z < 2. The best fit to the data for the local density parameter is Ωm = 0.0401 ± 0.0199. Because Ωm is within the baryonic budget there is no need for any dark matter to account for the SNe Ia redshift luminosity data. From this local density it is determined that the redshift where the universe expansion transitions from deceleration to acceleration is z t = 1.095+0.264 −0.155. Because the fitted data covers the range of the predicted transition redshift z t, there is no need for any dark energy to account for the expansion rate transition. We conclude that the expansion is now accelerating and that the transition from a closed to an open universe occurred about 8.54 Gyr ago.
Key words:Carmeli's cosmology high-redshift type Ia supernovae density parameter dark matter
Unable to display preview. Download preview PDF.
- 1.1. P. Astier et al., “The supernova legacy survey: Measurement of ΩM, Ωλ and w from the first-year data set,” Astron. Astrophys. (2005) arXiv:astro-ph/0510447Google Scholar
- 10.10. W. L. Freedman, B. F. Madore, J. R. Mould, R. Hill, L. Ferrarese, R. C. Kennicutt Jr, A. Saha, P. B. Stetson, J. A. Graham, H. Ford, J. G. Hoessel, J. Huchra, S. M. Hughes, and G. D. Illingworth, “Distance to the Virgo cluster galaxy M100 from Hubble Space Telescope observations of Cepheids,” Nature 371, 757–762 (1994).CrossRefADSGoogle Scholar
- 11.11. W. L. Freedman, B. F. Madore, B. K. Gibson, L. Ferrarese, D. D. Kelson, S. Sakai, J. R. Mould, R. C. Kennicutt Jr, H. C. Ford, J. A. Graham, J. P. Huchra, S. M. G. Hughes, G. D. Illingworth, L. M. Macri, and P. B. Stetson, “Final results from the Hubble Space Telescope Key Project to measure the Hubble constant,” Ap. J. 553, 47–72 (2001).CrossRefADSGoogle Scholar
- 19.19. D. N. Spergel et al., “Wilkinson Microwave Anisotropy Probe (WMAP) three year results: Implications for cosmology,” arXiv:astro-ph/0603449.Google Scholar