HI synthesis observations of the blue compact dwarf NGC 1705
  Australia Telescope Compact Array HI-line observations of the nearby dwarf
galaxy NGC 1705 are presented. The data are used to trace the gravitational
potential of the galaxy out to several stellar disc scale lengths. A rotation
curve is derived for the system and used to generate mass models. Dark matter
dominates the gravitational potential at nearly all galactocentric radii. NFW
and pseudo-isothermal sphere halo parameterisations allowing for good
reproductions of the observations. The models suggest NGC 1705 to have a dark
matter halo that it much denser and more compact than previously thought.
