Acoustic and buoyancy modes throughout stellar evolution - Seismic properties of stars at different stellar ages and masses

Abstract

Parameter regions in which stars can become pulsationally unstable are found throughout the Hertzsprung-Russel diagram. Stars of high, intermediate, low and very low masses may cross various instability regions along their paths of evolutionary sequences. In describing them, I give special consideration to hybrid pulsational characteristics that are particularly valuable for asteroseismic investigations, to Pdot measurements that allow us to directly follow the stellar evolutionary changes in some stars, and to new research results that stand out with respect to previous consensus.

9 pages, to appear in "The Modern Era of Helio- and Asteroseismology", eds. M. Roth and K. Uytterhoeven, Astron. Nachr. (http://www.interscience.wiley.com/)

References in corpus (14)

• Fast core rotation in red-giant stars revealed by gravity-dominated mixed modes
• Testing Scaling Relations for Solar-Like Oscillations from the Main Sequence to Red Giants using Kepler Data
• The Kepler characterization of the variability among A- and F-type stars. I. General overview
• Light echoes reveal an unexpectedly cool Eta Carinae during its 19th-century Great Eruption
• Solar-like oscillations in a massive star
• SDSS J142625.71+575218.3, a Prototype for a New Class of Variable White Dwarf
• Frequency analysis of Cepheids in the Large Magellanic Cloud. New types of classical Cepheid pulsators
• The excitation of solar-like oscillations in a delta Scuti star by efficient envelope convection
• SDSS J160043.6+074802.9: a very rapid sdO pulsator
• The temporal changes of the pulsational periods of the pre-white dwarf PG 1159-035
• EXOTIME: searching for planets around pulsating subdwarf B stars
• On the challenging variability of LS IV-14°116: pulsational instabilities excited by the ε-mechanism
• Discovery of hybrid $\gamma$ Dor and $\delta$ Sct pulsations in BD+18 4914 through MOST spacebased photometry
• Nonradial oscillations in classical Cepheids: the problem revisited