Institute of Astronomy

Thick and thin disk kinematics with RAVE and the solar motion

SpeakerTalk DateTalk Series
Stefano Pasetto (UCL)22 May 2013Institute of Astronomy Seminars

Abstract

I present a kinematic analysis of the Galactic thin and thick disks based on
RAdial Velocity Experiment (RAVE). Thin and thick disk components are
considered as two distinct galactic populations and disentangled from their
mixture with analytical and statistical method. The prospects and
limitations of this method are explored with the use of photometric
distances and proper motions and compared with a phase-space synthetic
Galactic model.
I deduced the components of the solar motion relative to the local standard
of rest in the radial and vertical direction, the velocity lag of the thick
disk and the components of the velocity dispersion tensor for the thin and
thick disk in the meridional plane.

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