Oscillations in solar-like oscillators tend to follow an approximately regular pattern in which oscillation modes of a certain degree and consecutive order appear at regular intervals in frequency, i.e. the so-called large frequency separation. This is true to first order approximation for acoustic modes. However, to a second order approximation it is evident that the large frequency separation changes as a function of frequency. This frequency dependence has been seen in the Sun and in other main-sequence stars. However, from observations of giant stars, this effect seemed to be less pronounced. We investigate the difference in frequency dependence of the large frequency separation between main-sequence and giant stars using YREC evolutionary models.
CITATION STYLE
Hekker, S., Basu, S., Elsworth, Y., & Chaplin, W. J. (2013). Frequency dependence of Δν of solar-like oscillators investigated: Influence of heii ionization zone. In Astrophysics and Space Science Proceedings (Vol. 31, pp. 73–76). Springer Netherlands. https://doi.org/10.1007/978-3-642-29630-7_14
Mendeley helps you to discover research relevant for your work.