Results 41 to 50 of about 71,616 (293)
Quadratic gravity potentials in de Sitter spacetime from Feynman diagrams
Journal of High Energy Physics, 2023 We employ a manifestly covariant formalism to compute the tree-level amputated Green’s function of non-minimally coupled scalar fields in quadratic gravity in a de Sitter background.
Renata Ferrero, Chris Ripken
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Modified Baryonic Dynamics: two-component cosmological simulations with light sterile neutrinos [PDF]
, 2014 In this article we continue to test cosmological models centred on Modified Newtonian Dynamics (MOND) with light sterile neutrinos, which could in principle be a way to solve the fine-tuning problems of the standard model on galaxy scales while ...
Angus, GW +4 more
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Cosmology with modified Newtonian dynamics (MOND) [PDF]
Monthly Notices of the Royal Astronomical Society, 1998 It is well-known that the application of Newtonian dynamics to an expanding spherical region leads to the correct relativistic expression (the Friedmann equation) for the evolution of the cosmic scale factor. Here, the cosmological implications of Milgrom's modified Newtonian dynamics (MOND) are considered by means of a similar procedure.
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Modified Newtonian dynamics in the Milky Way [PDF]
Monthly Notices of the Royal Astronomical Society, 2005 Both microlensing surveys and radio-frequency observations of gas flow imply that the inner Milky Way is completely dominated by baryons, contrary to the predictions of standard cold dark matter (CDM) cosmology. We investigate the predictions of the Modified Newtonian Dynamics (MOND) formula for the Galaxy given the measured baryon distribution ...
Famaey, Benoît, Binney, James
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A DERIVATION OF MODIFIED NEWTONIAN DYNAMICS [PDF]
Journal of The Korean Astronomical Society, 2013 4 pages, 1 figure; to appear in JKAS (received 2013 February 14; revised 2013 March 22; accepted 2013 March 28)
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The total mass of the early-type galaxy NGC 4649 (M60) [PDF]
Serbian Astronomical Journal, 2008 In this paper the problem of the total mass and the total mass-to-light ratio of the early-type galaxy NGC 4649 (M60) is analyzed. Use is made of two independent techniques: the X-ray methodology which is based on the temperature of the X-ray halo of NGC
Samurović S., Ćirković M.M.
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Modified inertia from extended uncertainty principle(s) and its relation to MoND
European Physical Journal C: Particles and Fields, 2020 In this paper we show that Modified Inertia, i.e., the modification of inertia predicted by some alternative theories of gravity at cosmic scales, can be naturally derived within the framework of the extended uncertainty principle (EUP). Specifically, we
Jaume Giné, Giuseppe Gaetano Luciano
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Modified gravity, dark energy and modified Newtonian dynamics [PDF]
Journal of Cosmology and Astroparticle Physics, 2006 We propose a class of actions for the spacetime metric that introduce corrections to the Einstein–Hilbert Lagrangian depending on the logarithm of some curvature scalars. We show that for some choices of these invariants the vacuum is ghost free at the perturbative level and Newtonian gravity is modified below a characteristic acceleration scale given ...
Ignacio Navarro, Karel Van Acoleyen
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Stability of disk galaxies in the modified dynamics [PDF]
, 1998 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.
Brada R. +9 more
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Modified Newtonian Dynamics: A Falsification of Cold Dark Matter
Advances in Astronomy, 2009 The only viable alternative to dark matter is one in which Newtonian dynamics or gravity breaks down in the limit of low accelerations, as in modified Newtonian dynamics (MONDs).
R. H. Sanders
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