Interacting new agegraphic dark energy in nonflat Brans-Dicke cosmology

We construct a cosmological model of late acceleration based on the new agegraphic dark energy model in the framework of Brans-Dicke cosmology where the new agegraphic energy density rho(D) = 3n(2)m(p)(2)/eta(2) is replaced with rho(D) = 3n(2)phi(2)/(4 omega eta(2)). We show that the combination of the Brans-Dicke field and agegraphic dark energy can accommodate a w(D) = -1 crossing for the equation of state of noninteracting dark energy. When an interaction between dark energy and dark matter is taken into account, the transition of w(D) to the phantom regime can be more easily accounted for than when we resort to the Einstein field equations. In the limiting case alpha = 0 (omega -> infinity), all previous results of the new agegraphic dark energy in Einstein gravity are restored.