The Impact Of Secular Features On The Evolution Of Disk Galaxies.

Details The Impact Of Secular Features On The Evolution Of Disk Galaxies. The Impact Of Secular Features On The Evolution Of Disk Galaxies.

Jan 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21743027n&link_type=abstract

American Astronomical Society, AAS Meeting #217, #430.27; Bulletin of the American Astronomical Society, Vol. 43, 2011

Astronomy and Astrophysics

Astronomy

Scientific paper

The role of bars in driving secular evolution of galaxies is still highly debated. Studies on the fraction of barred galaxies in the local universe and high redshift, and their role in building bulges and triggering AGN have not yielded consistent results. Recently, using a sample of 14,000 SDSS galaxies with detailed visual classifications including bars and rings, I was able to reconcile the disparity in the reported optical bar fractions. In this work, I extend the analysis to high-redshift, using a sample of 20,000 equally detailed visual classifications from the zCOSMOS survey. In addition, I will present results on the impact of bars on the metallicity evolution of galaxies and their correlations with AGN activity.

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