Mass models of gas-rich void dwarf galaxies
  We construct mass models of eight gas rich dwarf galaxies that lie in the
Lynx-Cancer void. From NFW fits to the dark matter halo profile, we find that
the concentration parameters of halos of void dwarf galaxies are similar to
those of dwarf galaxies in normal density regions. We also measure the slope of
the central dark matter density profiles, obtained by converting the rotation
curves derived using 3-D (\fat) and 2-D (ROTCUR) tilted ring fitting routines,
into mass densities. We find that the average slope ($\alpha = -1.39 \pm
0.19$), obtained from 3-D fitting is consistent with that expected from an NFW
profile. On the other hand, the average slope measured using the 2-D approach
is closer to what would be expected for an isothermal profile. This suggests
that systematic effects in velocity field analysis have a significant effect on
the slope of the central dark matter density profiles. Given the modest number
of galaxies we use for our analysis, it is important to check these results
using a larger sample.
