... most of its stars have eccentric orbits, many display retrogrademotion in the Galaxy, and their ages are comparatively low ... a larger velocity dispersion, slower orbital motion (a significant number having retrograde orbits), and are, on average ...
... The largest third subsystem has no metallicity gradient, most of its objects have retrogrademotion in the Galaxy, some of them have unusually low content of -elements, and their ages are comparatively low in average, supporting the hypothesis that the ...
... The largest third subsystem has no metallicity gradient, most of its objects have retrogrademotion in the Galaxy, some of them have unusually low content of -elements, and their ages are comparatively low in average, supporting the hypothesis that the ...
... velocity corrected for the solar motion relative to the local centroid from Harris (1996) , V=225 km/s is the velocity of circular motion of the local centroid of the Sun, and A is the angle between the apex of the circular motion of the local centroid of ...
... RR Lyrae using precise ground - based and Hipparcos proper motions, combined with their published radial velocities, metal ... The most RR Lyrae from this subsystem have stretched orbit, retrograde rotation, and have relative small ages. ...