Do Proto-Jovian Planets Drive Outflows?

We discuss the possibility that gaseous giant planets drive strong outflows during early phases of their formation. We consider the range of parameters appropriate for magneto-centrifugally driven stellar and disk outflow models and find that if the proto-Jovian planet or accretion disk had a magnetic field of ∼> 10 Gauss and moderate mass inflow accretion rates through the disk of less than ∼ 10MJ/yr that it is possible to drive an outflow. Estimates based both on scaling from empirical laws observed in proto-stellar outflows and the magneto-centrifugal disk and stellar+disk wind models suggest that winds with mass outflow rates of order 10MJ/yr and velocities of order ∼ 20 km/s could be driven from proto-Jovian planets. Prospects for detection and some implications for the formation of the solar system are briefly discussed. Subject headings: planets and satellites: general, formation, giant planets; solar system: formation; ISM: jets and outflows; (stars:) planetary systems; stars: low-mass, brown dwarfs