HD 149499B : the hottest white dwarf ?

Wray, J. D.; Parsons, S. B.; Henize, K. G.

Abstract

IUE spectra of the white dwarf component of HD 149499, discovered from the Skylab experiments S-019 UV survey, show prominent lines of He II. The star appears to be helium-rich with He/H not less than 1. The ultraviolet fluxes show the temperature to be within the range 70,000-100,000 K, with the most probable value near 85,000 K.

1979 The Astrophysical Journal
IUE 19