Kinematics of faint white dwarfs.
An analysis has been made for solar motion for 128 very faint white dwarfs of color class b or a. While about 40% of these stars may be high-velocity objects, it seems definitely indicated that the luminosity of all of them is considerably lower than that for the "normal" white dwarf of the same color.
Luyten
W J
WJ
University of Minnesota, 211 Space Science Center, Minneapolis, Minnesota 55455.