Correlations between Kinematics and Metallicity in the Galactic Bulge: A Review

Authors :: Carine Babusiaux
Source :: Publications of the Astronomical Society of Australia. 33
Publication Year :: 2016
Publisher :: Cambridge University Press (CUP), 2016.
Abstract: Recent large scale surveys of galactic bulge stars allowed to build a detailed map of the bulge kinematics. The bulge exhibits cylindrical rotation consistent with a disky origin which evolved through bar driven secular evolution. However correlations between metallicity and kinematics complicate this picture. In particular a metal-poor component with distinct kinematic signatures has been detected. Its origin, density profile and link with the other Milky Way stellar populations are currently still poorly constrained.<br />Comment: Accepted for publication in PASA