Influence of the cosmic repulsion on the MOND model of the Magellanic Cloud motion in the field of Milky Way

Abstract

It has been recently shown that the cosmic repulsion can have a highly significant influence on the motion of Magellanic Clouds (MC) in the gravitational field of Milky Way, treated in the framework of the Cold Dark Matter (CDM) halo model. However, there is an alternative to the CDM halo explanation of the rotation curves in the periphery of spiral galaxies, based on MOdified Newtonian Dynamics (MOND). Therefore, we study the role of the cosmic repulsion in the framework of the MOND theory applied to determine the MC motion. Our results demonstrate that in the MOND framework the influence of the cosmic repulsion on the motion of both Small and Large MC is also highly significant, but it is of a different character than in the framework of the CDM halo model. Moreover, we demonstrate that the MC motion in the framework of the CDM halo and MOND models is subtantially different and can serve as a test of these fundamentally different approaches to the explanation of the phenomena related to galaxies and the motion of satellite galaxies.

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Cited by in corpus (8)

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• General relativistic polytropes with a repulsive cosmological constant
• The effect of the deforming dark matter haloes of the Milky Way and the Large Magellanic Cloud on the Orphan-Chenab stream
• Scalar perturbations and quasi-normal modes of a non-linear magnetic-charged black hole surrounded by quintessence
• Photon motion in Kerr-de Sitter spacetimes
• Dynamical instability of polytropic spheres in spacetimes with a cosmological constant
• Motion of spinning particles in non asymptotically flat spacetimes
• The Local Group as a test system for Modified Newtonian Dynamics