Abstract
We obtained 1955 high-resolution spectra of the high-amplitude pulsating subdwarf B star V338 Ser with the FIES spectrograph at the 2.5 m Nordic Optical Telescope covering 4 full nights in May–June 2009. Here we present the first results from phase-folding the data on the main pulsation mode, as revealed by simultaneous B-band photometry obtained with the Mercator 1.25 m and Baker 0.4 m telescopes. We compare the results with a sample line-profile model produced with LTE atmospheres and bruce+kylie.
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Østensen, R.H., Telting, J.H., Oreiro, R. et al. Time-resolved spectroscopy of the sdBV V338 Serpentis. Astrophys Space Sci 329, 167–174 (2010). https://doi.org/10.1007/s10509-010-0287-0
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DOI: https://doi.org/10.1007/s10509-010-0287-0