Identification of pulsation modes from spectroscopy

Uytterhoeven, K.
Bibliographical reference

Precision Asteroseismology, Proceedings of the International Astronomical Union, IAU Symposium, Volume 301, pp. 101-107

Advertised on:
2
2014
Number of authors
1
IAC number of authors
1
Citations
2
Refereed citations
2
Description
Time-series of high-resolution spectra of massive main-sequence pulsators contain information on the degree l and azimuthal number m of a pulsation mode. I present an overview of existing mode-identification techniques that have been developed to derive l and m from spectroscopic data. I also discuss the data quality needed to perform such a study. Through some examples from the literature I show that the optimal way to identify modes in heat-driven non-radial pulsators is by 1) using multi-site campaign data, 2) combining different spectroscopic mode-identification techniques, and 3) combining results from photometric and spectroscopic mode-identification studies.