Color--Mass-to-Light Ratio Relations for Disk Galaxies

@article{McGaugh2014ColorMasstoLightRR,
  title={Color--Mass-to-Light Ratio Relations for Disk Galaxies},
  author={Stacy S. McGaugh and James M. Schombert},
  journal={arXiv: Astrophysics of Galaxies},
  year={2014}
}
We combine Spitzer $3.6\mu$ observations of a sample of disk galaxies spanning over 10 magnitudes in luminosity with optical luminosities and colors to test population synthesis prescriptions for computing stellar mass. Many commonly employed models fail to provide self-consistent results: the stellar mass estimated from the luminosity in one band can differ grossly from that of another band for the same galaxy. Independent models agree closely in the optical ($V$-band), but diverge at longer… 
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