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Curvature and Cosmic Repulsion

1998/03/11 by Philip D. Mannheim, Mannheim, Philip D.
Physics and Astronomy · #Astrophysics (astro-ph) #Cosmology and Gravitation Theories #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #High Energy Physics - Phenomenology (hep-ph) #History and Developments in Astronomy #Relativity and Gravitational Theory #astro-ph #gr-qc #hep-ph

paper · pdf · doi:10.48550/arxiv.astro-ph/9803135

Revtex, 8 pages (after replacing by single-spacing)

arxiv created 1998/03/11 · openalex publication_date 1998/03/11 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Some recent supernovae studies have extended the distance versus velocity Hubble plot to very high redshift, and have revealed the apparent presence of a cosmic repulsion. We show that such a repulsion has a natural origin within conformal gravity, a fully covariant candidate alternative to standard gravity, and that it arises from the gravitational field itself via the negative spatial curvature which conformal cosmology is required to possess. In this same cosmology the flatness, horizon and cosmological constant problems are all resolved, and no need is found for dark matter.

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