Photometric and Spectroscopic Analysis of Cool White Dwarfs with Trigonometric Parallax Measurements
Photometric and Spectroscopic Analysis of Cool White Dwarfs with Trigonometric Parallax Measurements
A detailed photometric and spectroscopic analysis of cool (Teff ≲ 12,000 K) white dwarf stars is presented. The sample has been drawn from the Yale Parallax Catalog and from a proper motion survey in the southern hemisphere. Optical BVRI and infrared JHK photometry, as well as spectroscopy at Hα, have …