Are the galactic bulga and bar the same ?
Abstract
Description
An overview is given of the results obtained about Galactic Structure studies towards the Galactic Centre from star counts. The results indicate the presence of an old, metal-rich population (Z=0.005-0.08; t=13-15 Gyr), presumably the old Galactic Bulge. In addition, a younger, less metal-rich population was found (Z=0.005-0.03}; t=8-9 Gyr), likely related to the tri-axial bar found in other studies. In Baade's Window a ratio bulge/bar stars of approximately 1/2 was obtained from star counts.
2 pages LaTeX, to appear in proceedings IAU symposium 184 ``The Central Region of the Galaxy and Galaxies'', August 18-22, 1997, Kyoto (Japan), Y. Sofue (ed.)
2 pages LaTeX, to appear in proceedings IAU symposium 184 ``The Central Region of the Galaxy and Galaxies'', August 18-22, 1997, Kyoto (Japan), Y. Sofue (ed.)