Publication date: Dec 2013
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.
Authors:
Schee, J.; Stuchlík, Z.; Petrásek, M.;