LAUSR

Data from the Merged Catalog of Galaxies (MERCG) are used to study the dynamic characteristics of spiral galaxies with absolute magnitudes M ≥ −20m.6 in the Perseus, A779, and Coma clusters and the Great Wall formation. The diameters of the galaxies from the MERCG were used to determine the radius RD corresponding to the possible radius within which dark matter is concentrated. The dynamic parameters Mdyn and Mdyn/LB of the spiral galaxies were calculated based on the condition of centrifugal equilibrium. The theory of angular momentum transfer was used to estimate the central surface density m0 and angular momentum K of stars in the spiral galaxies. A comparison of the dynamic parameters of the spiral galaxies with M ≥ −20m.6 and M ≤ −20m.6 reveals a statistically significant reduction in the number of spiral galaxies with M ≥ −20m.6 that have a larger fraction of dark matter. The following values have been obtained for these clusters: Perseus (35.3%), A779 (17.4%), Coma (12.6%), and Great Wall (23.6%).