KINEMATICS OF HOT SUBDWARFS

We present the first results from a larger project in which the kinema tics of hot subdwarfs are investigated. Proper motions are being deter mined for blue halo stars based on Carte du Ciel and recent plates. Th ese, together with radial velocities (new data are presented), distanc es (from the literature), and a mass model for the galaxy, lead to the determination of the space motions of these objects. The kinematics o f hot subdwarfs will be used for a determination of the population mem bership of these stars. The present small sample shows subdwarfs with a kinematical behaviour very similar to that of disk globular clusters . One of the objects has an apparent orbit reaching to z > 8 kpc and i s thus a candidate Population 11 star; the other objects stay at z < 3 kpc.