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Paper: UV Time-series Spectroscopy of GD 358
Volume: 462, Progress in Solar/Stellar Physics with Helio- and Asteroseismology
Page: 171
Authors: Nitta, A.; Koester, D.; Chu, D.; Thompson, S. E.; Kepler, S. O.; Kleinman, S. J.; Winget, D. E.; Provencal, J. L.; Castanheira, B. G.
Abstract: Via Hubble Space Telescope (HST) spectroscopy, we find He II lines in surface spectra of the DBV GD 358. We propose that pulsation heating of GD 358's atmosphere is responsible for producing the He II lines. We also apply the so-called “chromatic amplitude method” to identify the three largest modes observed and obtain consistent results with those obtained previously from the Whole Earth Telescope (WET) observations.
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