Abstract:
Places of formation of 10 nearby classical Cepheids have been computed in a model of our Galaxy which has axisymmetric and spiral-like components. For the axisymmetric components Schmidt's (1965) model is used, and spiral-like perturbations are approximated by logarithmic spirals. Different pattern speeds, Omega p, have been used to get the best correlation of places of formation with a spiral structure. We conclude that best fit is obtained with Omega p= 13.5 km/s kp/c.
