I estimate Modified-Dynamics (MOND), median M/L values for recently published catalogues of galaxy groups. While the median, Newtonian M/L values quoted for these catalogues are (110 − 200)h75(M/L) , the corresponding values for MOND are less than 10 (M/L) (where the mass includes contributions from galactic, and intra-group gas). Subject headings: Galaxies: kinematics and dynamics; Cosmology: ...

It is shown that the MOdified Newtonian Dynamics (MOND) explains the tilt of the fundamental plane of elliptical galaxies without the need of non-baryonic dark matter. Results found for elliptical galaxies extends to globular clusters and galaxy clusters, showing that MOND agrees with observations over 7 order of magnitude in acceleration.

We first review the nonrelativistic lagrangian theory as a framework for the MOND equation. Obstructions to a relativistic version of it are discussed leading up to TeVeS, a relativistic tensor-vectorscalar field theory which displays both MOND and Newtonian limits. The whys for its particular structure are discussed and its achievements so far are summarized.

Abstract It has been demonstrated that the difference between Renormalised Brane World (RBW) model and Lambda Cold Dark Matter (ΛCDM) occurs only at sufficiently distant times. In this paper, it is shown for spherically symmetric situations an analog deviation RBW Newton's theory large distances. More precisely, of nothing other than explanation Milgrom's hypothesis follows from itself. Therefo...

MOND predicts that a mass, M , contained within its transition radius rt ≡ (MG/a0) , may exhibit a feature at about that radius in the form of a shell, or projected ring, in the deduced distribution of its phantom dark matter. This is despite the absence of any underlying feature in the true (“baryon”) source distribution itself. The phenomenon is similar to the appearance of an event horizon a...

Although the modified dynamics (MOND) proposed by Milgrom successfully accounts for the systematics of galaxy rotation curves and cluster dynamics without invoking dark matter, the idea remains a largely ad hoc modification of Newtonian dynamics with no basis in deeper theory. Non-standard scalar-tensor theories have been suggested as a theoretical basis for MOND; however, any such theory with ...

Lo, Sargent, and Young (1993) have recently published an analysis of the HI kinematics of nine faint dwarf galaxies. Among other things, they conclude that the masses of these systems, as deduced by the modified dynamics (MOND) from the observed velocity dispersions, are systematically smaller than even the HI masses that are observed in these systems, by a factor of ten or more. Such a state o...

The recently proposed Skordis-Z\l{}o\'{s}nik theory is the first relativistic MOND that can recover success of standard $\Lambda$CDM model at matching observations cosmic microwave background. This paper aims to revisit Newtonian and approximations gravitational wave analysis theory. For local parameters, we show one could obtain both time-varying effective \textit{constant} $G_\textrm{N}$ char...

Modified Newtonian dynamics (MOND) has been shown to be able to fit spiral galaxy rotation curves as well as giving a theoretical foundation for empirically determined scaling relations, such as the Tully-Fisher law, without the need for a dark matter halo. As a complementary analysis, one should investigate whether MOND can also reproduce the dynamics of early-type galaxies (ETGs) without dark...