Hubble Tarantula Treasury Project. III. Photometric Catalog and
  Resulting Constraints on the Progression of Star Formation in the 30 Doradus
  Region
  We present and describe the astro-photometric catalog of more than 800,000
sources found in the Hubble Tarantula Treasury Project (HTTP). HTTP is a Hubble
Space Telescope (HST) Treasury program designed to image the entire 30 Doradus
region down to the sub-solar (~0.5 solar masses) mass regime using the Wide
Field Camera 3 (WFC3) and the Advanced Camera for Surveys (ACS). We observed 30
Doradus in the near ultraviolet (F275W, F336W), optical (F555W, F658N, F775W),
and near infrared (F110W, F160W) wavelengths. The stellar photometry was
measured using point-spread function (PSF) fitting across all the bands
simultaneously. The relative astrometric accuracy of the catalog is 0.4 mas.
The astro-photometric catalog, results from artificial star experiments and the
mosaics for all the filters are available for download. Color-magnitude
diagrams are presented showing the spatial distributions and ages of stars
within 30 Dor as well as in the surrounding fields. HTTP provides the first
rich and statistically significant sample of intermediate and low mass pre-main
sequence candidates and allows us to trace how star formation has been
developing through the region. The depth and high spatial resolution of our
analysis highlight the dual role of stellar feedback in quenching and
triggering star formation on the giant HII region scale. Our results are
consistent with stellar sub-clustering in a partially filled gaseous nebula
that is offset towards our side of the Large Magellanic Cloud.
