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Milgrom's modified Newtonian dynamics (MOND) has done a great job on accounting for the rotation curves of a variety of galaxies by assuming that Newtonian dynamics breaks down for extremely low acceleration typically found in the galactic…

宇宙学与河外天体物理 · 物理学 2011-06-01 Ling-Jun Wang

Modified Newtonian dynamics (MOND) is an empirically motivated modification of Newtonian gravity or inertia suggested by Milgrom as an alternative to cosmic dark matter. The basic idea is that at accelerations below a0 ~ 10^{-8} cm/s^2 ~…

天体物理学 · 物理学 2009-11-07 Robert H. Sanders , Stacy S. McGaugh

Milgrom has proposed that the appearance of discrepancies between the Newtonian dynamical mass and the directly observable mass in astronomical systems could be due to a breakdown of Newtonian dynamics in the limit of low accelerations…

天体物理学 · 物理学 2007-05-23 R. H. Sanders

We explore the possibility that Milgrom's Modified Newtonian Dynamics (MOND) is a manifestation of the modification of inertia at small accelerations. Consistent with the Tully-Fisher relation, dynamics in the small acceleration domain may…

星系天体物理 · 物理学 2015-06-09 Fathi Namouni

This work studies the cosmology of $\chi^{3/2}$-MOND gravity by Bernal et. al. (2011). This theory is a modification to Einstein's General Relativity (GR) that uses a dimensionless curvature scalar $\chi$ by rescaling the Ricci scalar $R$…

广义相对论与量子宇宙学 · 物理学 2023-07-31 Donniel Cruz , Emmanuel Rodulfo

This paper introduces a possible alternative model of gravity based on the theory of fractional-dimension spaces and its applications to Newtonian gravity. In particular, Gauss's law for gravity as well as other fundamental classical laws…

广义相对论与量子宇宙学 · 物理学 2021-02-09 Gabriele U. Varieschi

This chapter presents Modified Newtonian Dynamics (MOND), the proposal that, below a certain acceleration scale $a_0$, dynamics departs from the Newtonian expectation. In that context, the determining factor for the emergence of apparent…

星系天体物理 · 物理学 2025-01-29 Benoit Famaey , Amel Durakovic

A new formulation of MOND as a modified-potential theory of gravity is propounded. In effect, the theory dictates that the MOND potential phi produced by a mass distribution rho is a solution of the Poisson equation for the modified source…

宇宙学与河外天体物理 · 物理学 2014-11-20 Mordehai Milgrom

Modified Newtonian dynamics (Mond) has had considerable success in describing motions in galaxies. It uses a single force which falls off inversely with the distance at large distances and inversely with the square of the distance at…

星系天体物理 · 物理学 2015-06-18 Peter Rastall

Moderhai Milgrom's Modified Newtonian Dynamics (MOND) correction to Newtonian gravity or inertia is shown to be equivalent to a more fundamental formulation considering a non-inertial local reference frame and the fixed background of the…

综合物理 · 物理学 2026-01-08 Manuel Uruena Palomo

From a study of conserved quantities of the so-called Modified Newtonian Dynamics (MOND) we propose an alternative to this theory. We show that this proposal is consistent with the Tully-Fisher law, has conserved quantities whose Newtonian…

天体物理学 · 物理学 2007-05-23 Juan M. Romero , Adolfo Zamora

Although the modified dynamics (MOND) proposed by Milgrom successfully accounts for the systematics of galaxy rotation curves and cluster dynamics without invoking dark matter, the idea remains a largely ad hoc modification of Newtonian…

天体物理学 · 物理学 2009-10-28 R. H. Sanders

Milgrom's Modified Newtonian dynamics (MOND) provides an efficient way to summarize phenomenology of galaxies which does not lean on the notion of dark matter; it has great predictive power. Here I briefly review MOND as well as its…

宇宙学与河外天体物理 · 物理学 2013-11-22 Jacob D. Bekenstein

We present a modified inertia formulation of Modified Newtonian dynamics (MOND) without retaining Galilean invariance. Assuming that the existence of a universal upper bound, predicted by MOND, to the acceleration produced by a dark halo is…

星系天体物理 · 物理学 2018-01-09 Mohammed Alzain

We propose a local Lagrangian for a point particle where its inertia part is modified in the regime of small accelerations. For the standard gravitational central force, it recovers the deep MOdified Newtonian Dynamics (MOND) (accelerations…

广义相对论与量子宇宙学 · 物理学 2020-06-24 Renato Costa , Guilherme Franzmann , Jonas P. Pereira

The observed dynamics of gas and stars on galactic and larger scales cannot be accounted for by self-gravity, indicating that there are large quantities of unseen matter, or that gravity is non-Newtonian in these regimes. Milgrom's MOdified…

天体物理学 · 物理学 2019-08-17 Anthony Aguirre , Joop Schaye , Eliot Quataert

The MOdified Newtonian Dynamics (MOND) is presented here, as well as a theory that can be linked to it: the theory of the Aether, a four-vector field breaking Lorentz invariance. The form of its Lagrangian is studied, then basic equations…

天体物理学 · 物理学 2007-10-23 Anaelle Halle

Modified Newtonian dynamics (MOND) is an alternative theory of gravity that aims to explain large-scale dynamics without recourse to any form of dark matter. However the theory is incomplete, lacking a relativistic counterpart, and so makes…

天体物理学 · 物理学 2008-11-26 Daniel J. Mortlock , Edwin L. Turner

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

We show that the Modified Newtonian Dynamics (MOND) regime can be fully recovered as the weak-field limit of a particular theory of gravity formulated in the metric approach. This is possible when Milgrom's acceleration constant is taken as…

广义相对论与量子宇宙学 · 物理学 2015-06-04 S. Mendoza , T. Bernal , J. C. Hidalgo , S. Capozziello
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