Stellar Masses and SFRs for 1M Galaxies from SDSS and WISE

  title={Stellar Masses and SFRs for 1M Galaxies from SDSS and WISE},
  author={Yu-Yen Chang and Arjen van der Wel and E. da Cunha and Hans-Walter Rix},
  journal={arXiv: Astrophysics of Galaxies},
We combine SDSS and WISE photometry for the full SDSS spectroscopic galaxy sample, creating SEDs that cover lambda=0.4-22 micron for an unprecedented large and comprehensive sample of 858,365 present-epoch galaxies. Using MAGPHYS we then model simultaneously and consistently both the attenuated stellar SED and the dust emission at 12 micron and 22 micron, producing robust new calibrations for monochromatic mid-IR star formation rate proxies. These modeling results provide the first mid-IR-based… 
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