Abstract Historically, the existence of dark matter has been postulated to resolve discrepancies between astrophysical observations and accepted theories gravity. In particular, measured rotation curve galaxies provided much experimental support concept. However, most used explain have restricted Newtonian potential framework, disregarding general relativistic corrections associated with mass c...

We construct a Galacto-Local Group rotation curve, combining the Galactic rotation curve with a diagram, where galacto-centric radial velocities of outer globular clusters and member galaxies of the Local Group are plotted against their galacto-centric distances. The high-velocity ends of this pseudo rotation curve within a radius R ∼ 150 kpc are well traced by a rotation curve calculated for t...

Some considerable damage to steel structures during the Hyogo-ken Nanbu Earthquake occurred. Among them, many exposed-type column bases failed in several consistent patterns, such as brittle base plate fracture, excessive bolt elongation, unexpected early bolt failure, and inferior construction work, etc. The lessons from these phenomena led to the need for improved understanding of column base...

The environmental dependencies of the characteristics of spiral galaxy rotation curves are studied in this work. We use our large, homogeneously collected sample of 510 cluster spiral galaxy rotation curves to test the claim that the shape of a galaxy’s rotation curve strongly depends on its location within the cluster, and thus presumably on the strength of the local intracluster medium and on...

The study of the kinematics of globular clusters in the outer regions of the Large Magellanic Cloud by Schommer et al. [1] suggested a flat rotation curve, perhaps out to 15 kpc: the LMC might have a dark matter halo. Here, from a composite H i and star cluster rotation curve (fig. 1), I want to estimate the parameters of an isothermal halo added to a ‘maximum disk.’ Luks and Rohlfs [2], in the...