Abstract
Most of the information we have about the internal rotation of stars comes from modes that are weakly affected by rotation, for example by using rotational splittings. In contrast, we present here a method, based on the asymptotic theory of Prat et al. (2016), which allows us to analyse the signature of rotation where its effect is the most important, that is in low-frequency gravity modes that are strongly affected by rotation. For such modes, we predict two spectral patterns that could be confronted to observed spectra and those computed using fully two-dimensional oscillation codes.
Highlights
Stellar evolution plays a central role in astrophysics by linking observable quantities, such as effective temperature or surface gravity, to fundamental parameters of stars that can be used to constrain other objects such as galaxies or planets
Angular momentum and chemical transport processes are crucial for stellar evolution, since they modify the structure of stars ([1])
The traditional approximation, which neglects the latitudinal component of the rotation vector, allows for variable separation for all rotations, providing such a tool, but its relevance for seismology is uncertain
Summary
Stellar evolution plays a central role in astrophysics by linking observable quantities, such as effective temperature or surface gravity, to fundamental parameters of stars that can be used to constrain other objects such as galaxies or planets. Perturbative methods can be used to estimate internal rotation by measuring the splittings between modes of different azimuthal orders. It is possible to describe waves as rays in a way similar to geometrical optics by assuming that the wavelength is much smaller than the characteristic length of the variations of the background These rays can be used to explore the properties of modes more efficiently than full numerical computations.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
