Mass-to-Light versus Color Relations for Dwarf Irregular Galaxies
  We have determined new relations between $UBV$ colors and mass-to-light
ratios ($M/L$) for dwarf irregular (dIrr) galaxies, as well as for transformed
$g^\prime - r^\prime$. These $M/L$ to color relations (MLCRs) are based on
stellar mass density profiles determined for 34 LITTLE THINGS dwarfs from
spectral energy distribution fitting to multi-wavelength surface photometry in
passbands from the FUV to the NIR. These relations can be used to determine
stellar masses in dIrr galaxies for situations where other determinations of
stellar mass are not possible. Our MLCRs are shallower than comparable MLCRs in
the literature determined for spiral galaxies. We divided our dwarf data into
four metallicity bins and found indications of a steepening of the MLCR with
increased oxygen abundance, perhaps due to more line blanketing occurring at
higher metallicity.
