Reference : Spectroscopic observations of pulsating stars
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
Spectroscopic observations of pulsating stars
Aerts, C. [> > > >]
Briquet, Maryline mailto [KULeuven > Instituut voor Sterrenkunde > > >]
Carrier, F. [> > > >]
Desmet, M. [> > > >]
Zima, W. [> > > >]
Communications in Asteroseismology
Verlag der Österreichischen Akademie der Wissenschaften
[en] During the past three decades, astronomers have been gathering extensive time series of high- precision spectroscopy of pulsating stars. In contrast to one-shot spectra, which provide the fundamental parameters, time-resolved spectroscopy offers a much broader variety of input for asteroseismology. The most important applications encompass the determination of the radial-velocity amplitudes and phases of the modes, the detection of modes that are invisible in photometry, the identification of the azimuthal orders through specialised methodology, the unravelling of pulsational and orbital motions, and, since a few years, the detection of solar-like oscillations in various types of stars. We discuss the input that spectroscopic time series can provide for asteroseismic modelling, for various types of pulsators. We end with some future prospects of how spectroscopy can help to push seismic applications beyond the present achievements.

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