Suchergebnisse

The kernel estimator method is used to evaluate the surface and spatial star number density in star clusters. Both density maps and radial density profiles are plotted. These estimates are used to derive the cluster size, the number of cluster stars and the cluster mass, and to study the cluster structure. The kernel estimator is also used to plot the luminosity function, mass function, the velocity distribution, and Hess diagrams for star clusters. The advantages of the kernel estimator method and technical details of its use are illustrated by modern results for the open cluster NGC 4337. © 2016, Lithuanian Astronomical Union. All rights reserved. ; Ministry of Education and Science of the Russian Federation, Minobrnauka: 3.1781.2014/K, 01201465056 ; Government Council on Grants, Russian Federation ; This work was partially supported by the Ministry of Education and Science of the Russian Federation (state contract No. 3.1781.2014/K, registration number 01201465056). The travel to the conference was supported by Act 211 of the Government of the Russian Federation, agreement No. 02.A03.21.0006.

Condensed and reprinted from Voprosi Filosofii (No.4, 1951).