MONDian predictions for Newtonian M/L ratios for ultrafaint dSphs
  Under Newtonian gravity total masses for dSph galaxies will scale as $M_{T}
\propto R_{e} \sigma^{2}$, with $R_{e}$ the effective radius and $\sigma$ their
velocity dispersion. When both of the above quantities are available, the
resulting masses are compared to observed stellar luminosities to derive
Newtonian mass to light ratios, given a physically motivated proportionality
constant in the above expression. For local dSphs and the growing sample of
ultrafaint such systems, the above results in the largest mass to light ratios
of any galactic systems known, with values in the hundreds and even thousands
being common. The standard interpretation is for a dominant presence of an as
yet undetected dark matter component. If however, reality is closer to a
MONDian theory at the extremely low accelerations relevant to such systems,
$\sigma$ will scale with { stellar mass} $M_{*}^{1/4}$. This yields an
expression for the mass to light ratio which will be obtained under Newtonian
assumptions of $(M/L)_{N}=120 R_{e}(\Upsilon_{*}/L)^{1/2}$. Here we compare
$(M/L)_{N}$ values from this expression to Newtonian inferences for this ratios
for the actual $(R_{e}, \sigma, L)$ observed values for a sample of recently
observed ultrafaint dSphs, obtaining good agreement. Then, for systems where no
$\sigma$ values have been reported, we give predictions for the $(M/L)_{N}$
values which under a MONDian scheme are expected once kinematical observations
become available. For the recently studied Dragonfly 44 { and Crater II
systems}, reported $(M/L)_{N}$ values are also in good agreement with MONDian
expectations.
