Stellar Mass-to-light Ratios and the Tully-fisher Relation

  title={Stellar Mass-to-light Ratios and the Tully-fisher Relation},
  author={Eric F. Bell and Roelof S De Jong},
We have used a suite of simplified spectrophotometric spiral galaxy evolution models to argue that there are substantial variations in stellar mass-to-light ratios (M/Ls) within and among galaxies, amounting to factors of between 3 and 7 in the optical, and factors of 2 in the near-infrared. Our models show a strong correlation between stellar M/L and the optical colors of the integrated stellar populations. Under the assumption of a universal spiral galaxy IMF, relative trends in model stellar… CONTINUE READING