A&A 478, 193-196 (2008)
Seismic evolution of low/intermediate mass PMS starsF. J. G. Pinheiro
Centro de Astrofísica da Universidade do Porto, Rua da Estrelas, 4150-762 Porto, Portugal
(Received 19 January 2007 / Accepted 31 October 2007)
This article presents a study of the evolution of the internal structure and seismic properties expected for low/intermediate mass Pre-Main Sequence (PMS) stars. Seismic and non-seismic properties of PMS stars were analysed. This was done using 0.8 to 4.4 stellar models at stages ranging from the end of the Hayashi track up to the Zero-Age Main-Sequence (ZAMS). This research concludes that, for intermediate-mass stars (M > 1.3 ), diagrams comparing the effective temperature against the small separation can provide an alternative to Christensen-Dalsgaard (C-D) diagrams. The impact of the metal abundance of intermediate mass stars (2.5-4.4 ) has over their seismic properties is also evaluated.
Key words: stars: evolution -- stars: interiors -- stars: oscillations -- stars: pre-main sequence
© ESO 2008