منابع مشابه
Dark Matter and Dark Energy
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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A novel model of dark matter (DM), elastically compressible, can contribute to the acceleration of our Universe expansion. While each galaxy compresses its own DM within its gravitation field, the DM bordering neighboring galaxies, far from their centers, is pulled apart. It is shown that, although the DM pressure tends to zero at such locations, the DM compressibility tends to infinity. This a...
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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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Bruce A. Bassett, Martin Kunz, David Parkinson and Carlo Ungarelli Institute of Cosmology and Gravitation, University of Portsmouth, Portsmouth PO1 2EG, UK Astrophysics, Department of Physics, 1 Keble Road, Oxford University, Oxford OX1 3RH, UK Astronomy Centre, CPES, University of Sussex, Brighton, BN1 9QJ, UK School of Physics and Astronomy, University of Birmingham Edgbaston, Birmingham, B15...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 2003
ISSN: 0370-2693
DOI: 10.1016/j.physletb.2003.06.051