
We analyze the photometric information
contained in individual pixels of
galaxies in the Hubble Deep Field North using a new technique,
pixel-z, that combines predictions of evolutionary synthesis models
with photometric redshift template fitting. Each spectral energy
distribution template is a result of modeling of the detailed physical
processes affecting gas properties and star formation efficiency. The
criteria chosen to generate the SED templates is that of sampling a
wide range of physical characteristics such as age, star formation rate,
extinction and metallicity. A key feature of our method is the
sophisticated use of error analysis to generate error maps. These define
the reliability of the template fitting on pixel scales and allow for
the separation of the interplay among dust, metallicity and
star formation. This technique offers a number of advantages over
traditional integrated color studies. As a first application, we derive
the star formation histories for physically distinct galactic
sub-components of the galaxies in the HDF-N. |

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