منابع مشابه
Conformal Gravity: Dark Matter and Dark Energy
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The phenomena customly described with the standard ΛCDM model are broadly reproduced by an extremely simple model in TeVeS, Bekenstein’s (2004) modification of General Relativity motivated by galaxy phenomenology. Our model can account for the acceleration of the universe seen in SNeIa distances without a cosmological constant, and the accelerations seen rotation curves of nearby spiral galaxie...
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I briefly review our current understanding of dark matter and dark energy. The first part of this paper focusses on issues pertaining to dark matter including observational evidence for its existence, current constraints and the ‘abundance of substructure’ and ‘cuspy core’ issues which arise in CDM. I also briefly describe MOND. The second part of this review focusses on dark energy. In this pa...
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Observations provide increasingly strong evidence that the universe is accelerating. This revolutionary advance in cosmological observations confronts theoretical cosmology with a tremendous challenge, which it has so far failed to meet. Explanations of cosmic acceleration within the framework of general relativity are plagued by difficulties. General relativistic models are nearly all based on...
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More than sixty years ago Zwicky made the case that the great clusters of galaxies are held together by the gravitational force of unseen (dark) matter. Today, the case is stronger and more precise: Dark, nonbaryonic matter accounts for 30%±7% of the critical mass density, with baryons (most of which are dark) contributing only 4.5% ± 0.5% of the critical density. The large-scale structure that...
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ژورنال
عنوان ژورنال: International Journal of Modern Physics E
سال: 2015
ISSN: 0218-3013,1793-6608
DOI: 10.1142/s0218301315500123