EAS Publications Series
Volume 69-70, 2014What the Highest Angular Resolution Can Bring to Stellar Astrophysics?
|Page(s)||229 - 247|
|Published online||10 September 2015|
F. Millour, A. Chiavassa, L. Bigot, O. Chesneau, A. Meilland and Ph. Stee (eds)
EAS Publications Series, 69–70 (2014) 229-247
Institut d'Astrophysique Spatiale, Université Paris XI, UMR 8617, CNRS, Bâtiment 121, 91405 Orsay Cedex, France
Asteroseismology is a powerful technique that can be employed to determine precise fundamental parameters of stars, such as the radius, mass and age. The data are sensitive to the density structure of the star, so if we combine these with an independently measured radius from interferometry, we can determine the mass with high precision. This is one of the only methods for determining masses of single field stars and with high precision – an otherwise unobservable property. Knowing masses of stars has consequences for exoplanetary characterisation, Galactic population studies and for stars themselves, it allows us to constrain stellar model parameters, yields more precise determinations of ages which thus allows us to calibrate age-rotation relations as well as setting stellar constraints on the age of our own Galaxy.
© EAS, EDP Sciences, 2015