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S. Ravindranath (STScI), C. Conselice (Caltech), E. Chatzichristou (Yale University), D. de Mello (JHU), H.C. Ferguson (STScI), J.P. Gardner (GSFC), M. Giavalisco (STScI), N.A. Grogin, A. Hornschemeier (JHU), S. Jogee, A.M. Koekemoer (STScI), Kyoungsoo Lee (JHU), R.A. Lucas, B. Mobasher (STScI), B. Simmons, M. Urry (Yale University), E. Schreier (STScI), GOODS Team
The structural parameters of galaxies reflect the effects of physical processes related to their formation and evolution. The high spatial resolution (0.1 \arcsec) HST ACS images obtained in the B, V, i, and z bands by the Great Observatories Origins Deep Survey (GOODS) over a large survey area (320 sq. arcmin), provides a unique opportunity to quantify the morphological evolution of galaxies out to redshifts z = 1. We present the preliminary results from an analysis based on two-dimensional modeling of the surface brightness distributions of galaxies in the GOODS-South field. The decomposition of multiple galaxy components (such as the bulge, inner and outer disks, bars, and central compact sources) is performed using multiple Sérsic profiles. The observed scale lengths, bulge magnitudes, bulge-to-disk ratios, Sérsic indices, and the correlations among these structural parameters are used to examine the evolution of the bulge and disk properties of the galaxies with redshift.
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Bulletin of the American Astronomical Society, 34, #4
© 2002. The American Astronomical Soceity.