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arXiv · 0804.4355

Spectroscopic Mode Identification in Slowly Pulsating Subdwarf-B Stars

C. Schoenaers·A. E. Lynas-Gray
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Abstract

Mode identification is crucial for an asteroseismological study of any significance. Contrarily to spectroscopic techniques, methods such as period-fitting and multi-colour photometry do not provide a full reconstruction of non-radial pulsations. We present a new method of spectroscopic mode identification and test it on time-series of synthetic spectra appropriate for pulsating subdwarf-B stars. We then apply it to the newly discovered slowly pulsating subdwarf-B star HD 4539.

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C. Schoenaers, A. E. Lynas-Gray. 2008-04-28. Spectroscopic Mode Identification in Slowly Pulsating Subdwarf-B Stars. https://arxiv.org/abs/0804.4355

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