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Gamma Doradus are F-type stars pulsating with high order g-modes. Theirinstability strip (IS) overlaps the red edge of the delta Scuti one. Thisobservation has led to search for objects in this region of the HR diagramshowing p and g-modes simultaneously. The existence of such hybrid pulsatorshas recently been confirmed (Handler 2009) and the number of candidates isincreasing (Matthews 2007). From a theoretical point of view, non-adiabaticcomputations including a time-dependent treatment of convection (TDC) predictthe existence of gamma Dor/delta Sct hybrid pulsators (Dupret et al. 2004;Grigahcene et al. 2006). Our aim is to confront the properties of the observedhybrid candidates with the theoretical predictions from non-adiabaticcomputations of non-radial pulsations including the convection-pulsationinteraction.

Hybrid gamma Doradus/delta Scuti Stars: Comparison Between Observations and Theory