Dark Matter Redistribution Explains Galaxy Growth and Rotation Curve DevelopmentThere are significant discrepancies between observational evidence and the hierarchical galaxy formation theory with respect to the shape of dark matter halos, the correlation between galaxy characteristics, and galaxy evolutionary ...
dark mattergalaxies: dwarfgalaxies: ISMgalaxies: kinematics and dynamicsISM: kinematics and dynamicsRotation curves constrain a galaxy's underlying mass density profile, under the assumption that the observed rotation produces a centripetal force that exactly balances the inward force of gravity. However,...
by modelling the supernovae distribution via the measured UV and H alpha fluxes, and compare the resulting dark matter halo profiles with the rotation curve data for each dwarf galaxy in the LITTLE THINGS sample. The dissipative dark matter concept is further developed and some conclusions drawn....
Crucially, any anomaly found in wide binaries can not be attributed to dark matter; within a GR framework, the rotation curve of the galaxy determines the distribution of dark matter, which is also constrained by the vertical motion of stars in the Milky Way disk, too much dark matter locall...
Dark Matter Detected through its gravitational effects. The rotation curves of galaxies suggest the presence of dark matter. 9 Dark Energy Dominant component of the universe's energy content. Dark energy influences the fate of the universe. 6 Dark Matter Hypothesized to be made of undiscovered part...
dark matter is almost a constant1,2,3. However, these relations can only apply for galaxies, but not for galaxy clusters4. Besides, based on the assumption of collisionless behavior of dark matter particles, computer simulations show that dark matter density would follow the Navarro-Frenk-White...
Rotation curves of dark matter-dominated galaxies measure the mass profiles of galactic halos and thereby test theories of their cosmological origin. While attention has focused lately on the possible discrepancy at small galactocentric radii between observed rotation curves and the singular density profil...
Rotation curve of a spiral galaxy [52]. 5.1 MACHOs The first candidate for dark matter that comes to mind is some kind of astronomical objects, namely stars or planets, which are is too dark to be seen. People talked about “Jupiters,”“brown dwarfs,” etc. In some sense, that would...
The effect of halo substructures on galaxy rotation curves is investigated in this paper using a simple model of dark matter clustering. A dark matter halo density profile is developed based only on the scale free nature of clustering that leads to a sta
Left image: the rotation curve of spiral galaxy NGC 3198 showing the actual velocities of its outer stars (plotted points), then the velocities that would be expected given the mass of visible matter in its disk - overlaid by the assumed contribution of the mass of a dark matter halo. Rig...