Results 1 to 10 of about 4,727,160 (263)

Khronometric Theories of Modified Newtonian Dynamics [PDF]

open access: yesThe Astrophysical Journal, 2023
In 2011 Blanchet and Marsat suggested a fully relativistic version of Milgrom's modified Newtonian dynamics in which the dynamical degrees of freedom consist of the spacetime metric and a foliation of spacetime, the khronon field.
Éanna. É. Flanagan
doaj   +6 more sources

Phase Transition in Modified Newtonian Dynamics (MONDian) Self-Gravitating Systems [PDF]

open access: yesEntropy, 2021
We study the statistical mechanics of binary systems under the gravitational interaction of the Modified Newtonian Dynamics (MOND) in three-dimensional space.
Mohammad Hossein Zhoolideh Haghighi   +2 more
doaj   +4 more sources

Modified Newtonian Dynamics (MOND): Observational Phenomenology and Relativistic Extensions [PDF]

open access: yesLiving Reviews in Relativity, 2012
A wealth of astronomical data indicate the presence of mass discrepancies in the Universe. The motions observed in a variety of classes of extragalactic systems exceed what can be explained by the mass visible in stars and gas. Either (i) there is a vast
Stacy S. McGaugh, Benoît Famaey
doaj   +4 more sources

From Modified Newtonian Dynamics to Superfluid Vacuum Theory [PDF]

open access: yesEntropy, 2022
Herein is a review of the essentials of Modified Newtonian Dynamics (MOND) versus dark matter models based on Superfluids for modeling galactic rotation curves. We review the successes and issues of both approaches.
Tony C. Scott
doaj   +2 more sources

Oscillating Cosmological Force Modifies Newtonian Dynamics [PDF]

open access: yesGalaxies, 2020
In the Newtonian limit of general relativity a force acting on a test mass in a central gravitational field is conventionally defined by the attractive Newtonian gravity (inverse square) term plus a small repulsive cosmological force, which is ...
Igor I. Smolyaninov
doaj   +6 more sources

Modified Newtonian Dynamics as an Alternative to the Planet Nine Hypothesis

open access: yesThe Astronomical Journal, 2023
A new class of Kuiper Belt objects (KBOs) that lie beyond Neptune with semimajor axes greater than 250 astronomical units show orbital anomalies that have been interpreted as evidence for an undiscovered ninth planet.
Katherine Brown, Harsh Mathur
doaj   +1 more source

Relativistic theory of the gravitation for Modified Newtonian Dynamics

open access: yesRevista de Investigación de Física, 2023
Modified Newtonian dynamics (MOND) is a hypothesis that proposes a modification of Newton's law of universal gravitation to account for observed properties of galaxies. This theory is an alternative to the hypothesis of dark matter in terms of explaining
Mississippi Valenzuela
doaj   +1 more source

Newtonian Fractional-Dimension Gravity and Galaxies without Dark Matter

open access: yesUniverse, 2023
We apply Newtonian fractional-dimension gravity (NFDG), an alternative gravitational model, to some notable cases of galaxies with little or no dark matter.
Gabriele U. Varieschi
doaj   +1 more source

A Severe Challenge to the Modified Newtonian Dynamics Phenomenology in Our Galaxy

open access: yesThe Astrophysical Journal, 2023
Modified Newtonian dynamics (MOND) is one of the most popular alternative theories of dark matter to explain the missing mass problem in galaxies. Although it remains controversial regarding MOND as a fundamental theory, MOND phenomenology has been shown
Man Ho Chan, Ka Chung Law
doaj   +1 more source

Newtonian and modified newtonian gravitational simulation of spiral galaxies

open access: yesIraqi Journal of Physics, 2019
One of the most powerful tools for any stellar dynamics is the N-body simulation. In an N-body simulation the motion of N particles is followed under their mutual gravitational attraction.
Bushra A. Ahmed
doaj   +1 more source

Home - About - Disclaimer - Privacy