NASA NTRS · 19850046036
KPD 0005 + 5106 - A post-PG 1159 type object?
Abstract
In a survey for galactic plane UV-excess objects, a very hot (T about 100,000 K) helium-rich white dwarf is discovered. The object is spectroscopically similar to the pulsating PG 1159 class of stars, with narrow emission lines of He II, probably C IV, and possibly C III/N III, although there is no trace of carbon absorptions. Not all features have positive identifications. This object appears to be an old PG 1159 star, having ceased pulsations during evolution toward a more typical DO white dwarf.
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Downes, R. A., Liebert, J., Margon, B.. 1985-03-01. KPD 0005 + 5106 - A post-PG 1159 type object?. https://ntrs.nasa.gov/citations/19850046036
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