Fritz Zwicky performed his dark matter inference in the 1930s by analyzing what key measurement of the member galaxies?
Answer
Their high dispersion velocity
Zwicky calculated that the visible matter could not provide enough gravitational pull based on the high velocities (dispersion velocity over 1,000 km/s) observed among the member galaxies.
Related Questions
What is the official catalog designation for the Coma Cluster?What type of galaxies dominate the dense core regions of the Coma Cluster?What physical process transforms spiral galaxies as they move inward toward the Coma Cluster's harsh environment?Which two supergiant elliptical galaxies anchor the core of Abell 1656?Fritz Zwicky performed his dark matter inference in the 1930s by analyzing what key measurement of the member galaxies?What fraction of the Coma Cluster's total mass is modern estimates believed to be dark matter?The Coma Cluster's location near the North Galactic Pole grants observers what specific advantage?The cluster spans approximately how many light-years across, dwarfing the Milky Way's width?The cluster's known recession velocity, quantified by its redshift ($z$), is approximately what value?The hot gas permeating the space between galaxies in the cluster emits X-rays at what typical temperature range?The Coma Cluster is structurally linked to which other cluster to form the larger Coma Supercluster?When imaging the cluster, a slight natural yellowish cast in a processed image might indicate successful capture of which population?