The properties of the local spiral arms from RAVE data: two-dimensional density wave approach
The properties of the local spiral arms from RAVE data: two-dimensional density wave approach
Using the RAVE survey, we recently brought to light a gradient in the mean galactocentric radial velocity of stars in the extended solar neighbourhood. This gradient likely originates from non-axisymmetric perturbations of the potential, among which a perturbation by spiral arms is a possible explanation. Here, we apply the traditional …