Generating spatial curvature in an inhomogeneous universe: A bottom-up approach to cosmology

2010 ◽  
Vol 57 (3(1)) ◽  
pp. 586-590
Author(s):  
Kjell Rosquist ◽  
Lars Samuelsson
Keyword(s):  
Spatial Curvature ◽  
Bottom Up ◽  
Inhomogeneous Universe

scholarly journals GRAVITATIONAL ENERGY AND COSMIC ACCELERATION

2008 ◽  
Vol 17 (03n04) ◽  
pp. 641-649 ◽  
Author(s):  
DAVID L. WILTSHIRE
Keyword(s):  
Acoustic Oscillation ◽  
Gravitational Energy ◽  
Cosmic Acceleration ◽  
Spatial Curvature ◽  
Apparent Effect ◽  
Inhomogeneous Universe ◽  
Angular Scale ◽  
Apparent Homogeneity ◽  
Expansion Of The Universe ◽  
The Universe

Cosmic acceleration is explained quantitatively, as an apparent effect due to gravitational energy differences that arise in the decoupling of bound systems from the global expansion of the universe. "Dark energy" is a misidentification of those aspects of gravitational energy which by virtue of the equivalence principle cannot be localized, namely gradients in the energy due to the expansion of space and spatial curvature variations in an inhomogeneous universe. A new scheme for cosmological averaging is proposed which solves the Sandage – de Vaucouleurs paradox. Concordance parameters fit supernova luminosity distances, the angular scale of the sound horizon in the CMB anisotropies, and the effective comoving baryon acoustic oscillation scale seen in galaxy clustering statistics. Key observational anomalies are potentially resolved, and unique predictions made, including a quantifiable variance in the Hubble flow below the scale of apparent homogeneity.

scholarly journals Question of measuring spatial curvature in an inhomogeneous universe

2021 ◽  
Vol 103 (8) ◽  
Author(s):  
Chi Tian ◽  
Stefano Anselmi ◽  
Matthew F. Carney ◽  
John T. Giblin ◽  
James Mertens ◽  
...  
Keyword(s):  
Spatial Curvature ◽  
Inhomogeneous Universe

Psychology and Culture: Top Down Versus Bottom Up?

PsycCRITIQUES ◽  
2005 ◽  
Vol 50 (19) ◽  
Author(s):  
Michael Cole
Keyword(s):  
Top Down ◽  
Bottom Up
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