  We study the rest-frame morphology and structural properties of optically
selected starburst galaxies at redshift z < 1, using multi-waveband (BViz) high
resolution images taken by the Advanced Camera for Surveys (ACS) as part of the
Great Observatories Origins Deep Survey (GOODS). We classify galaxies into
starburst, early and late types by comparing their observed spectral energy
distributions (SEDs) with local templates. We find that early-type systems have
significantly higher rest-frame B -band concentration indices and AGN fraction
(> 25%) than late-type spirals and optically-selected starbursts. These results
are consistent with the scenario in which early-epoch (z > 1) gas-rich
dissipative processes (e.g., major mergers) have played an important role in
developing large central concentrations in early-type E/Sa galaxies, leading to
concurrent growth of central black holes and bulge formation in some of these
early merger events. The starbursts have, on average, larger asymmetries than
our control sample of normal galaxies, suggesting that a significant fraction
of the starburst activity is tidally triggered.
