机译:Toward a spectroscopic census of white dwarfs within 40 pc of the Sun
Département de Physique, Université de Montréal, Succ. Centre-Ville, Montréal, QC H3C 3J7, Canada;
Department of Astrophysics, Division of Physical Sciences, American Museum of Natural History, Central Park West at 79th Street, New York, NY 1002, United States;
proper motions; solar neighborhood; stars: distances; surveys; techniques: spectroscopic; white dwarfs;