Talk abstract details

$\gamma$ Doradus (gamma Dor) are F-type stars pulsating with high order g-modes. The question of the existence of pre-main sequence (PMS) $\gamma$ Dor has recently been raised by COROT and MOST observations of the young cluster NGC 2264 hosting potential $\gamma$ Dor members, and by the observation of the planets host star HR 8799 showing $\gamma$ Dor pulsations and a dust disk.
We have explored the possibility of g-modes pulsations in a grid of PMS models covering the mass range 1.2 M$_{\odot}$ < M* < 2.5 M$_{\odot}$.
We obtain a clear instability strip for the PMS $\gamma$ Dor stars. We compare the properties of $\gamma$ Dor pulsations in PMS and main sequence evolutionary phases. We analyse their internal structures, their excited frequency ranges and the behaviour of their period-spacings.