Talk abstract details

The clear detection with CoRoT of radial and non-radial solar-like oscillations in many red giants paves the way to seismic inferences on the structure of such stars.
We present an overview of the properties of the adiabatic frequencies and frequency separations of radial and non-radial oscillation modes, highlighting how their detection allows a deeper insight into the properties of the internal structure of red giants. In our study we consider models of red giants in different evolutionary stages, as well as of different masses and chemical composition; the
effects of other physical processes and uncertainties (such as rotation, treatment of convection) are also addressed. We describe how the large and small separations computed with radial modes, and with non-radial modes mostly trapped in the envelope, are related to the properties of the acoustic cavity and we investigate the diagnostic potential of the observed modes.