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Bar Evolution Over the Last Eight Billion Years: A Constant Fraction of Strong Bars in GEMS
S. Jogee, F. D. Barazza, H. -W. Rix +25
One third of present-day spirals host optically visible strong bars that drive their dynamical evolution. However, the fundamental question of how bars evolve over cosmological tim…
GEMS: which galaxies dominate the z~0.7 ultraviolet luminosity density?
C. Wolf, E. F. Bell, D. H. McIntosh +14
We combine high-resolution images from GEMS with redshifts and spectral energy distributions from COMBO-17 to explore the morphological types of galaxies that dominate the z~0.7 UV…
Evolution of optically faint AGN from COMBO-17 and GEMS
L. Wisotzki, K. Jahnke, S. F. Sanchez +13
We have mapped the AGN luminosity function and its evolution between z=1 and z=5 down to apparent magnitudes of . Within the GEMS project we have analysed HST-ACS images of m…
UV light from young stars in GEMS quasar host galaxies at 1.8<z<2.75
K. Jahnke, S. F. Sanchez, L. Wisotzki +13
We have performed HST imaging of a sample of 23 high-redshift (1.8<z<2.75) AGN, drawn from the COMBO-17 survey. The sample contains moderately luminous quasars (M_B ~ -23). The dat…
GEMS: Galaxy Evolution from Morphologies and SEDs
Hans-Walter Rix, Marco Barden, Steven V. W. Beckwith +12
GEMS, Galaxy Evolution from Morphologies and SEDs, is a large-area (800 arcmin2) two-color (F606W and F850LP) imaging survey with the Advanced Camera for Surveys on HST. Centered o…