The formation of young B/PS bulges in edge-on barred galaxies
Abstract
We report about the fact that the stellar population that is born in the gas inflowing towards the central regions can be vertically unstable leading to a B/PS feature remarkably bluer that the surrounding bulge. Using new chemodynamical simulations we show that this young population does not remain as flat as the gaseous nuclear disc and buckles out of the plane to form a new boxy bulge. We show that such a young B/PS bulge can be detected in colour maps.
- Publication:
-
Formation and Evolution of Galaxy Bulges
- Pub Date:
- July 2008
- DOI:
- 10.1017/S1743921308017523
- arXiv:
- arXiv:0709.1993
- Bibcode:
- 2008IAUS..245..143W
- Keywords:
-
- galaxies: bulges;
- galaxies: evolution;
- galaxies: formation;
- galaxies: nuclei;
- galaxies: stellar content;
- galaxies: structure;
- methods: n-body simulations;
- Astrophysics
- E-Print:
- 2 pages, 5 figures, to appear in IAU Symposium 245, Formation and Evolution of Galaxy Bulges, M. Bureau, E. Athanassoula, and B. Barbuy (eds.), Oxford, 16-20 July 2007