DBV Stars
In 1982, calculations by D. E. Winget and his coworkers suggested that helium-atmosphere DB white dwarfs with surface temperatures around 19,000 K should also pulsate., p. L67. Winget then searched for such stars and found that GD 358 was a variable DB, or DBV, white dwarf. This was the first prediction of a class of variable stars before their observation., p. 89. In 1985, this star was given the designation V777 Her, which is also another name for this class of variable stars.;, p. 3525 These stars have effective temperatures around 25,000K., p. 895.
Read more about this topic: Pulsating White Dwarf
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