Results 31 to 40 of about 117,029 (345)
A New Stellar Mass Proxy for Subhalo Abundance Matching
The Astrophysical Journal, 2023 Subhalo abundance matching (SHAM) has played an important role in improving our understanding of how galaxies populate their host dark matter halos.
Chen-Yu Chuang, Yen-Ting Lin
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Non-universality of halo profiles and implications for dark matter experiments [PDF]
, 2011 We explore the cosmological halo-to-halo scatter of the distribution of mass within dark matter halos utilizing a well-resolved statistical sample of clusters from the cosmological Millennium simulation.
Bergstrom +51 more
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Properties of dark matter haloes [PDF]
New Astronomy Reviews, 2002 An overview is presented of the main properties of dark matter haloes, as we know them from observations, essentially from rotation curves around spiral and dwarf galaxies. Detailed rotation curves are now known for more than a thousand galaxies, revealing that they are not so flat in the outer parts, but rising for late-types, and falling for early ...
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Small scale structures in coupled scalar field dark matter
Physics Letters B, 2014 We investigate structure formation for ultra-light scalar field dark matter coupled to quintessence, in particular the cosmon–bolon system. The linear power spectrum is computed by a numerical solution of the coupled field equations.
J. Beyer, C. Wetterich
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Lighting Up Dark Matter Haloes [PDF]
Galaxies, 2019 Previous chapters of this issue have focused on the formation and evolution of cosmic structures under the influence of gravity alone. In order to make a close link between theoretical models of structure formation and observational data, it is necessary to consider the gas-dynamical and radiative processes that drive the evolution of the baryonic ...
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SHAPES OF DARK MATTER HALOS [PDF]
The Shapes of Galaxies and Their Dark Halos, 2002 5 pages, 2 figures, to appear in proceedings of the May 2001 Yale workshop "The Shapes of Galaxies and their Halos"
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Galactic halos of fluid dark matter [PDF]
Physical Review D, 2003 Dwarf spiral galaxies - and in particular the prototypical DDO 154 - are known to be completely dominated by an unseen component. The putative neutralinos - so far the favored explanation for the astronomical dark matter - fail to reproduce the well measured rotation curves of those systems because these species tend to form a central cusp whose ...
Arbey, Alexandre +2 more
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DARK ENERGY AND KEY PHYSICAL PARAMETERS OF CLUSTERS OF GALAXIES
Odessa Astronomical Publications, 2012 We discuss the physics of clusters of galaxies embedded in the cosmic dark energy background and show that 1) the halo cut-off radius of a cluster like the Virgo cluster is practically, if not exactly, equal to the zero-gravity radius at which the dark ...
A. D. Chernin, G. S. Bisnovatyi-Kogan
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Dynamical Models of Spherical Galaxies with Massive Halo [PDF]
Journal of Astronomy and Space Sciences, 2003 Using the Schwarzschild's linear programming technique, we obtained the general solutions of the collisionless Bolzmann equation describing the spherical galaxy in dynamical equilibrium.
Mun-Suk Chun +2 more
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Splashback Radius in a Spherical Collapse Model
Universe, 2022 It was shown several years ago that dark matter halo outskirts are characterized by very steep density profiles in a very small radial range. This feature has been interpreted as a pile-up of different particle orbits at a similar location, namely ...
Antonino Del Popolo, Morgan Le Delliou
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