Cosmometry of Galaxies
摘要
Currently, one of the problems on which the scientific world is focused is the measurement of the Hubble constant, \(H_{0}\) , implied in Hubble's law, from which it can be inferred that galaxies move away from each other at a speed proportional to their distance, because the redshift of a galaxy is proportional to its distance. Its importance is such that, through equations of the theory of general relativity, its implication with the size of astrophysical objects and with the age of the universe can be tested. The objective of this work is to measure the physical size of a set of galaxies located at different redshifts in the Virgo, Coma, Abell 85 and background galaxies clusters, given the dependence of the distance with the value of \(H_{0}\) , and the relationship between angular distance and redshift. From the cosmometric measures of cluster galaxies, we can conclude that the values of \(H_{0}\) of 63, 67, 71, 97 and 100 km/s/Mpc fit with the acceleration of the current universe all of which are in agreement with results obtained by other authors. In this way, we contribute to measurements on groupings of stars, celestial bodies and cosmic matter that is concentrated in galaxies in a certain region of space due to the effect of gravitational attraction, influencing the knowledge of the origin of the universe we inhabit.