  We present the results of a coronagraphic scattered-light imaging survey of
six young disk candidate stars using the Hubble Space Telescope Advanced Camera
for Surveys. The observations made use of the 1.8" occulting spot through the
F606W (broad V) filter. Circumstellar material was imaged around HD 97048, a
Herbig Ae/Be star located in the Chamaeleon I dark cloud at a distance of 180
pc. The material is seen between ~2" (360 AU) and ~4" (720 AU) from the star in
all directions. A V-band azimuthally-averaged radial surface brightness profile
peaks at r = 2" with a value of 19.6 +/- 0.2 mag arcsec^-2 and smoothly
decreases with projected distance from the star as r^(-3.3 +/- 0.5). An
integrated flux of 16.8 +/- 0.1 mag is measured between 2" and 4",
corresponding to a scattered-light fractional luminosity lower limit of 8.4 x
10^-4. Filamentary structure resembling spiral arms similar to that seen in
Herbig Ae/Be disks is observed. Such structure has been attributed to the
influence of orbiting planets or stellar encounters. Average surface brightness
upper limits are determined for the five non-detections: HD 34282, HD 139450,
HD 158643, HD 159492, and HD 195627. Possible reasons for the non-detections
are disks that are too faint or disks hidden by the occulter.
