Comment on "Constraining the annihilating dark matter mass by the radio
  continuum spectral data of NGC4214 galaxy"
  In their recent paper, Chan and Lee discuss an interesting possibility: radio
continuum emission from a dwarf irregular galaxy may be used to constrain upper
limits on the cross section of annihilating dark matter. They claim that the
contributions from nonthermal and thermal emission can be estimated with such
accuracy that one can place new upper limits on the annihilation cross section.
We argue that the observations presented can be explained entirely with a
standard spectrum and no contribution from dark matter. As a result, the
estimated upper limits of Chan and Lee are atleast by a factor of 100 too low.
