DOI:
10.1017/S1743921313014142
IAA authors:
Suárez, J.C.;Garrido, R.;Rodón, J.R.
Authors:
Suárez J.C., Hernández A.G., Moya A., Rodrigo C., Solano E., Garrido R., Rodón J.R.
Journal:
Proceedings of the International Astronomical Union
Abstract:
We study the theoretical properties of the regular spacings found in the oscillation spectra of δ Scuti stars. A linear relation between the large separation and the mean density is predicted to be found in the low-frequency domain (i.e. radial orders spanning from 1 to 8, approximately) of the main-sequence δ Scuti stars' oscillation spectrum. This implies an independent direct measure of the average density of δ Scuti stars, analogous to that of the Sun, and places tight constraints on the mode identification and hence on the stellar internal structure and dynamics, and allows a determination the radii of planets orbiting around δ Scuti stars with unprecedented precision. This opens the way for studying the evolution of regular patterns in pulsating stars, and its relation to stellar structure and evolution. Copyright © International Astronomical Union 2014.
URL:
https://ui.adsabs.harvard.edu/#abs/2014IAUS..301...89S/abstract
Keywords:
oscillations (including pulsations); stars: evolution; stars: interiors; stars: variables: δ Scuti