中文
相关论文

相关论文: Numerical Solutions of the External Field Effect o…

200 篇论文

Unlike Newtonian dynamics which is linear and obeys the strong equivalence principle, in any nonlinear gravitation such as Milgromian dynamics (MOND), the strong version of the equivalence principle is violated and the gravitational…

星系天体物理 · 物理学 2016-03-23 Hosein Haghi , Amir E. Bazkiaei , Akram Hasani Zonoozi , Pavel Kroupa

The strong equivalence principle is violated by gravity theories of Milgromian dynamics (MOND) through the action of the external field effect. We test two different Lagrangian theories AQUAL and QUMOND based on their numerical solutions of…

星系天体物理 · 物理学 2022-11-30 Kyu-Hyun Chae , Federico Lelli , Harry Desmond , Stacy S. McGaugh , James M. Schombert

We looked at the orbital motions of test particles according to the External Field Effect (EFE) predicted by the MOdified Newtonian Dynamics (MOND) in the Oort cloud which falls in the deep MONDian regime (r\approx 50-150 kAU). Concerning…

广义相对论与量子宇宙学 · 物理学 2014-11-20 Lorenzo Iorio

In the framework of the MOdified Newtonian Dynamics (MOND), the internal dynamics of a gravitating system s embedded in a larger one S is affected by the external background field E of S even if it is constant and uniform, thus implying a…

广义相对论与量子宇宙学 · 物理学 2009-09-17 Lorenzo Iorio

Galaxies within galaxy clusters are known to be subject to a wide variety of environmental effects, both gravitational and hydrodynamical. In this study, we examine the purely gravitational interaction of idealised galaxy models falling…

星系天体物理 · 物理学 2018-08-29 G. N. Candlish , R. Smith , Y. Jaffé , A. Cortesi

The Modified Newtonian Dynamics (MOND) has been formulated as a modification of the Poisson equation for the Newtonian gravitational field. This theory generically predicts a violation of the strong version of the equivalence principle, and…

宇宙学与河外天体物理 · 物理学 2011-04-26 Luc Blanchet , Jerome Novak

The tight radial acceleration relation (RAR) obeyed by rotationally supported disk galaxies is one of the most successful a priori predictions of the modified Newtonian dynamics (MOND) paradigm on galaxy scales. Another important…

星系天体物理 · 物理学 2022-02-02 J. Freundlich , B. Famaey , P. -A. Oria , M. Bílek , O. Müller , R. Ibata

The Modified Newtonian Dynamics (MOND) generically predicts a violation of the strong version of the equivalence principle. As a result the gravitational dynamics of a system depends on the external gravitational field in which the system…

宇宙学与河外天体物理 · 物理学 2011-06-01 Luc Blanchet , Jerome Novak

The MOND modified gravity paradigm, best known for its agreement with galactic rotation curve data, is difficult to devise laboratory tests for. MOND's predictions differ substantially from Newtonian gravity only in the case of very small…

星系天体物理 · 物理学 2024-10-03 Benjamin Monreal , Xavier Moskala , Sofia Splawska

Models of "modified-inertia" formulation of MOND are described and applied to nonrelativistic many-body systems. They involve time-nonlocal equations of motion. Momentum, angular momentum, and energy are (nonlocally) defined, whose total…

星系天体物理 · 物理学 2022-10-03 Mordehai Milgrom

Milgromian dynamics (MD or MOND) is a promising physical description excelling especially in galaxies. When formulated as a modified gravity theory, it leads to the so called external field effect (EFE). In the case of the solar system this…

宇宙学与河外天体物理 · 物理学 2017-05-26 R. Paučo , J. Klačka

The possibility that ultra-diffuse galaxies lacking dark matter has recently stimulated interest to check the validity of Modified Newton Dynamics (MOND) predictions on the scale of such galaxies. It has been shown that the External Field…

星系天体物理 · 物理学 2019-03-06 Oliver Müller , Benoit Famaey , Hongsheng Zhao

We numerically investigate the features of typical orbits occurring in the Oort cloud (r\approx 50-150 kAU) in the low-acceleration regime of the MOdified Newtonian Dynamics (MOND). We take into account the so-called External Field Effect…

广义相对论与量子宇宙学 · 物理学 2011-04-07 Lorenzo Iorio

The standard $\Lambda$CDM paradigm seems to describe cosmology and large scale structure formation very well. However, a number of puzzling observations remain on galactic scales. An example is the anisotropic distribution of satellite…

星系天体物理 · 物理学 2020-04-07 Indranil Banik , Hongsheng Zhao

After a succinct review of the MOND paradigm--with its phenomenology, and its various underlying theories--I concentrate on so called modified inertia (MI) formulations of MOND, which have so far received only little attention. These share…

宇宙学与河外天体物理 · 物理学 2011-11-30 Mordehai Milgrom

The strong equivalence principle (SEP) distinguishes General Relativity from other viable theories of gravity. The SEP demands that the internal dynamics of a self-gravitating system under free-fall in an external gravitational field should…

星系天体物理 · 物理学 2021-03-05 Kyu-Hyun Chae , Federico Lelli , Harry Desmond , Stacy S. McGaugh , Pengfei Li , James M. Schombert

We examine the claimed observations of a gravitational external field effect (EFE) reported in Chae et al. We show that observations suggestive of the EFE can be interpreted without violating Einstein's equivalence principle, namely from…

广义相对论与量子宇宙学 · 物理学 2025-11-11 Corey Sargent , William Clark , Antonia Seifert , Alicia Mand , Emerson Rogers , Adam Lane , Alexandre Deur , Balša Terzić

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

Practically all the full-fledged MOND theories propounded to date are of the modified-gravity (MG) type: they modify only the Newtonian, Poisson action of the gravitational potential, or the general-relativistic Einstein-Hilbert action,…

星系天体物理 · 物理学 2023-11-17 Mordehai Milgrom

The Modified Newtonian Dynamics (MOND) paradigm generically predicts that the external gravitational field in which a system is embedded can produce effects on its internal dynamics. In this communication, we first show that this External…

星系天体物理 · 物理学 2015-11-10 A. Hees , B. Famaey , G. W. Angus , G. Gentile
‹ 上一页 1 2 3 10 下一页 ›