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The authors have computed the space motions for all degenerate stars having spectroscopic classification, proper motions, and measured colors, in order to meet three objectives: (1) identify kinematically distinct spectroscopic subgroups; (2) compare the results with earlier analyses which used smaller, less well-observed samples and; (3) to test a number of theoretical scenarios and predictions of white dwarf formation channels. Some of the kinematical tests required the determination of effective temperatures, radii, masses, and cooling ages, which are tabulated for the individual members of each spectroscopic subgroup along with the individual space motions. For each spectroscopic subgroup, average U, V, W, transverse velocity components, masses, radii, and their associated dispersions, are tabulated.
Sion et al. (Fri,) studied this question.