Seismic diagnosis from gravity modes strongly affected by rotation

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.

arXiv comment3 pages, 1 figure, to appear in the proceedings of the Joint TASC2 & KASC9 Workshop SPACEINN & HELAS8 Conference "Seismology of the Sun and the Distant Stars 2016"

References in corpus (11)

• Asteroseismic measurement of slow, nearly-uniform surface-to-core rotation in the main sequence F star KIC 9244992
• Seismic evidence for a weak radial differential rotation in intermediate-mass core helium burning stars
• Sub-Inertial Gravity Modes in the B8V Star KIC 7760680 Reveal Moderate Core Overshooting and Low Vertical Diffusive Mixing
• Transport and mixing in the radiation zones of rotating stars: I-Hydrodynamical processes
• Nearly-uniform internal rotation of solar-like main-sequence stars revealed by space-based asteroseismology and spectroscopic measurements
• Asymptotic analysis of high-frequency acoustic modes in rapidly rotating stars
• The internal rotation profile of the B-type star KIC10526294 from frequency inversion of its dipole gravity modes and statistical model comparison
• Gravity modes in rapidly rotating stars. Limits of perturbative methods
• Asymptotic theory of gravity modes in rotating stars. I. Ray dynamics
• Gravito-inertial waves in a differentially rotating spherical shell
• Regular Oscillation Sub-spectrum of Rapidly Rotating Stars