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Conformal geometry is considered within a general relativistic framework. An invariant distant for proper time is defined and a parallel displacement is applied in the distorted space-time, modifying Einstein's equation appropriately. A…

广义相对论与量子宇宙学 · 物理学 2015-06-16 Edmund A. Chadwick , Timothy F. Hodgkinson , Graham S. McDonald

A number of theories of gravity have been proposed as proxies for dark matter in the regime of galaxies and cosmology. The recent observations of gravitational waves (GW170817) from the merger of two neutron stars, followed by an…

广义相对论与量子宇宙学 · 物理学 2022-08-17 Constantinos Skordis , Tom Zlosnik

Verlinde's heuristic argument for the interpretation of the standard Newtonian gravitational force as an entropic force is generalized by the introduction of a minimum temperature (or maximum wave length) for the microscopic degrees of…

高能物理 - 理论 · 物理学 2015-05-27 F. R. Klinkhamer , M. Kopp

The modified newtonian dynamics (MOND) paradigm of Milgrom can boast of a number of successful predictions regarding galactic dynamics; these are made without the assumption that dark matter plays a significant role. MOND requires…

天体物理学 · 物理学 2014-10-13 Jacob D. Bekenstein

We derive a relativistic extension of Modified Newtonian Dynamics (MOND) within the framework of entropic gravity by introducing temperature-dependent corrections to the equipartition law on a holographic screen. Starting from a Debye-like…

广义相对论与量子宇宙学 · 物理学 2025-11-11 A. Rostami , K. Rezazadeh , M. Rostampour

In this paper, we investigate the recently proposed relativistic theory for MOND using the phase space analysis. Unlike its precedent theory, namely TeVeS, this theory is claimed to agree with the observed Cosmic Microwave Background and…

广义相对论与量子宇宙学 · 物理学 2022-10-12 Tahere Kashfi , Mahmood Roshan

MOND is a phenomenological modification of Newton's law of gravitation which reproduces the dynamics of galaxies, without the need for additional dark matter. This paper reviews the basics of MOND and its application to dwarf galaxies. MOND…

宇宙学与河外天体物理 · 物理学 2015-05-14 Arthur Kosowsky

After reviewing the modified Newtonian dynamics (MOND) proposal, we advocate that the associated phenomenology may actually not result from a modification of Newtonian gravity, but from a mechanism of "gravitational polarization" of some…

天体物理学 · 物理学 2008-07-09 Luc Blanchet , Alexandre Le Tiec

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

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

In recent years, superfluid dark matter (SfDM) has become a competitive model of emergent modified Newtonian dynamics (MOND) scenario: MOND phenomenons naturally emerge as a derived concept due to an extra force mediated between baryons by…

高能物理 - 唯象学 · 物理学 2018-02-08 Rong-Gen Cai , Tong-Bo Liu , Shao-Jiang Wang

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

The works in this portfolio test the hypothesis that it is not possible to extrapolate the Newtonian inverse square law of gravity from Solar System to galaxy scales. In particular, I look into various tests of Modified Newtonian Dynamics…

星系天体物理 · 物理学 2023-09-26 Indranil Banik

We explore the gravitational waves (GWs) within the framework of the $f(R)$ gravity model represented by $f(R)=R^{1+\delta}/R^\delta_c$ in the weak field approximation. In this scenario, gravitational waves exhibit an additional…

广义相对论与量子宇宙学 · 物理学 2024-01-17 Utkal Keshari Dash , Bal Krishna Yadav , Murli Manohar Verma

We show that treating gravitation as a thermodynamical theory leads to the modified Newton dynamics (MOND) equations if one takes into account the Hubble's expansion. Then the universal MOND acceleration a0 is exactly twice the product of…

宇宙学与河外天体物理 · 物理学 2015-03-17 Peter V. Pikhitsa

MOdified Newtonian Dynamics (MOND) is an alternative to the standard Cold Dark Matter (CDM) paradigm which proposes an alteration of Newton's laws of motion at low accelerations, characterized by a universal acceleration scale a_0. It…

宇宙学与河外天体物理 · 物理学 2022-11-23 Alexander C. Mayer , Adelheid F. Teklu , Klaus Dolag , Rhea-Silvia Remus

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

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

I review various ideas on MOND cosmology and structure formation beginning with non-relativistic models in analogy with Newtonian cosmology. I discuss relativistic MOND cosmology in the context of Bekenstein's theory and propose an…

天体物理学 · 物理学 2009-11-11 R. H. Sanders

The phenomenology of MOND (flat rotation curves of galaxies, baryonic Tully-Fisher relation, etc.) is a basic set of phenomena relevant to galaxy dynamics and dark matter distribution at galaxy scales. Still unexplained today, it enjoys a…

宇宙学与河外天体物理 · 物理学 2015-06-19 Luc Blanchet , Laura Bernard
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