Spitzer 70~$\mu$m Emission as a SFR Indicator for Sub--Galactic Regions

Yiming Li, Daniela Calzetti, Robert C. Kennicutt +4

We use Spitzer 24 $\mu$m, 70 $\mu$m and ground based H$\alpha$ data for a sample of 40 SINGS galaxies to establish a star formation rate (SFR) indicator using 70 $\mu$m emission for sub--gala…