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相关论文: Phase mixing in MOND

200 篇论文

Dissipationless collapses in Modified Newtonian Dynamics (MOND) are studied by using a new particle-mesh N-body code based on our numerical MOND potential solver. We found that low surface-density end-products have shallower inner density…

天体物理学 · 物理学 2011-02-11 C. Nipoti , P. Londrillo , L. Ciotti

We describe some results obtained with N-MODY, a code for N-body simulations of collisionless stellar systems in modified Newtonian dynamics (MOND). We found that a few fundamental dynamical processes are profoundly different in MOND and in…

天体物理学 · 物理学 2015-05-13 Carlo Nipoti , Pasquale Londrillo , Luca Ciotti

We present the results of N-body simulations of dissipationless galaxy merging in Modified Newtonian Dynamics (MOND). For comparison, we also studied Newtonian merging between galaxies embedded in dark matter halos, with internal dynamics…

天体物理学 · 物理学 2009-11-13 Carlo Nipoti , Pasquale Londrillo , Luca Ciotti

There are many hot discussions in the literature about two competing paradigms in galactic and extra-galactic astronomy and cosmology, namely the Dark Matter and the Modified Newtonian Dynamics (MOND). It is very difficult to challenge MOND…

宇宙学与河外天体物理 · 物理学 2014-05-27 Alexey Golovnev , Natalia Masalaeva

We present results derived from a high-resolution cosmological N-body simulation in which the equations of motion have been changed to account for MOdified Newtonian Dynamics (MOND). It is shown that a low-Omega0 MONDian model with an…

天体物理学 · 物理学 2007-05-23 Alexander Knebe

Modified Newtonian dynamics (MOND) provides a paradigm alternative to dark matter that has been successful in fitting and predicting the rich phenomenology of rotating disc galaxies. There have also been attempts to test MOND in…

星系天体物理 · 物理学 2015-05-13 Kyu-Hyun Chae , In-Taek Gong

General analytic arguments lead us to expect that in the modified dynamics (MOND) self-gravitating disks are more stable than their like in Newtonian dynamics. We study this question numerically, using a particle-mesh code based on a…

天体物理学 · 物理学 2014-10-13 Rafael Brada , Mordehai Milgrom

I show that Modified Newtonian Dynamics (MOND) is equivalent to assuming an isothermal dark matter density profile, with its density related to the enclosed total baryonic mass. This density profile can be deduced by physical laws if a dark…

宇宙学与河外天体物理 · 物理学 2015-06-17 Man Ho Chan

The stability of radially anisotropic spherical stellar systems in modified Newtonian dynamics (MOND) is explored by means of numerical simulations performed with the N-body code N-MODY. We find that Osipkov-Merritt MOND models require for…

星系天体物理 · 物理学 2015-05-27 Carlo Nipoti , Luca Ciotti , Pasquale Londrillo

We study the statistical mechanics of binary systems under gravitational interaction of the Modified Newtonian Dynamics (MOND) in three-dimensional space. Considering the binary systems, in the microcanonical and canonical ensembles, we…

统计力学 · 物理学 2021-09-15 Mohammad H. Zhoolideh Haghighi , Sohrab Rahvar , M Reza Rahimi Tabar

Modeling the structure formation in the universe, we extend the spherical collapse model in the context of MOND starting with the linear Newtonian structure formation followed by the MONDian evolution. In MOND the formation of structures…

天体物理学 · 物理学 2011-02-11 M. Malekjani , S. Rahvar , H. Haghi

We investigate the core-cusp problem of the $\Lambda$ cold dark matter ($\Lambda$CDM) scenario in the context of Modified Newtonian Dynamics (MOND) paradigm exploiting the concept of equivalent Newtonian system (ENS). By means of…

星系天体物理 · 物理学 2023-10-18 Federico Re , Pierfrancesco Di Cintio

We test the modified Newtonian dynamics (MOND) theory with the velocity-dispersion profiles of Galactic globular clusters populating the outermost region of the Milky Way halo, where the Galactic acceleration is lower than the…

星系天体物理 · 物理学 2015-05-14 A. Sollima , C. Nipoti

We have tested a previous analytical estimate of the dynamical friction timescale in Modified Newtonian Dynamics (MOND) with fully non-linear N-body simulations. The simulations confirm that the dynamical friction timescale is significantly…

天体物理学 · 物理学 2009-11-13 C. Nipoti , L. Ciotti , J. Binney , P. Londrillo

Modified Newtonian Dynamics (MOND) is an alternative to the dark matter hypothesis that attempts to explain the "missing gravity" problem in astrophysics and cosmology through a modification to objects' dynamics. Since its conception in…

宇宙学与河外天体物理 · 物理学 2025-05-29 Harry Desmond

We examine the implications of Modified Newtonian Dynamics (MOND) on the large scale structure in a Friedmann-Robertson-Walker universe. We employ a ``Jeans swindle'' to write a MOND-type relationship between the fluctuations in the density…

天体物理学 · 物理学 2009-11-07 Adi Nusser

The modified Newtonian dynamics (MOND) has been proposed as an alternative to the dark matter paradigm; the philosophy behind is that there is no dark matter and we witness a violation of the Newtonian law of dynamics. In this article, we…

天体物理学 · 物理学 2009-01-22 Luc Blanchet

X-ray emitting clusters of galaxies are considered in the context of modified Newtonian dynamics (MOND). I show that self-gravitating isothermal gas spheres are not good representations of rich clusters with respect to the radial gas…

天体物理学 · 物理学 2009-11-07 R. H. Sanders

The effect of background dynamics of the universe on formation of large scale structures in the framework of Modified Newtonian Dynamics (MOND) is investigated. A spherical collapse model is used for modeling the formation of the…

广义相对论与量子宇宙学 · 物理学 2015-05-28 M. Malekjani , H. Haghi , D. M. Z Jassur

MOdified Newtonian Dynamics (MOND) is an interesting alternative to dark matter in extragalactic systems. We here examine the possibility that mild or even strong MOND behavior may become evident well inside the solar system, in particular…

天体物理学 · 物理学 2009-11-11 Jacob Bekenstein , Joao Magueijo
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