Abstract
The Hubble Space Telescope (HST) Wide Field Planetary Camera 2 is being used to obtain high-resolution images (≤015 FWHM) in the V (F606W) and I (F814W) bands for several thousand distant galaxies as part of the Medium Deep Survey (MDS). An important scientific aim of the MDS is to identify possible active galactic nucleus (AGN) candidates from these images in order to measure the faint end of the AGN luminosity function, as well as to study the host galaxies of AGNs and nuclear starburst systems. We are able to identify candidate objects based on morphology. Candidates are selected by fitting bulge + disk models and bulge + disk + point-source nuclei models to HST-imaged galaxies and determining the best model fit to the galaxy light profile.
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