What makes you think such regions exist in our universe?brianmck said:focal regions of lower density.
The Dipole Repeller is a region in space that, contrary to a gravitational pull, appears to repel galaxies. It was identified through the analysis of galaxy velocities and is considered a significant factor in influencing the local velocity field of galaxies, contributing to their distribution and movement in the universe.
The discovery of the Dipole Repeller was made possible through the analysis of the peculiar velocities of galaxies - that is, their velocities relative to the expansion of the universe. By mapping these velocities, scientists were able to infer the presence of a repelling region, which was later confirmed through further observational data and computer simulations.
The effect of the Dipole Repeller is primarily attributed to a low-density area in space. In regions where matter is scarce, there is less gravitational attraction exerted on surrounding galaxies. This lack of gravitational pull can create a repelling effect on nearby galaxies, pushing them towards regions of higher density.
The Dipole Repeller, in conjunction with attracting dense regions like the Shapley Concentration, helps to shape the large-scale structure of the universe. These forces influence the movement of galaxies, guiding them away from repellers and towards attractors, thus contributing to the overall distribution and flow of galaxies across the cosmos.
Yes, the universe contains multiple repulsive and attractive regions that influence the movement and distribution of galaxies. While the Dipole Repeller is one significant example, other low-density regions (voids) and high-density regions (clusters and superclusters) also play crucial roles in the dynamics and evolution of the universe's structure.