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A summary is presented for 130 galaxies observed with the Herschel PACSinstrument to measure fluxes for the [CII] 158 um emission line. Sources covera wide range of active galactic nucleus to starburst classifications, asderived from polycyclic aromatic hydrocarbon (PAH) strength measured with theSpitzer Infrared Spectrograph. Redshifts from [CII] and line to continuumstrengths (equivalent width of [CII]) are given for the full sample, whichincludes 18 new [CII] flux measures. Calibration of L([CII)]) as a starformation rate (SFR) indicator is determined by comparing [CII] luminositieswith mid-infrared [NeII] and [NeIII] emission line luminosities; this gives thesame result as determining SFR using bolometric luminosities of reradiatingdust from starbursts: log SFR = log L([CII)]) - 7.0, for SFR in solar massesper year and L([CII]) in solar luminosities. We conclude that L([CII]) can beused to measure SFR in any source to a precision of ~ 50%, even if total sourceluminosities are dominated by an AGN component. The line to continuum ratio at158 um, EW([CII]), is not significantly greater for starbursts (medianEW([CII]) = 1.0 um) compared to composites and AGN (median EW([CII]) = 0.7 um),showing that the far infrared continuum at 158 um scales with [CII] regardlessof classification. This indicates that the continuum at 158 um also arisesprimarily from the starburst component within any source, giving log SFR = logvLv(158 um) - 42.8 for SFR in solar masses per year and vLv(158 um) in erg persec.

Star Formation Rates from [CII] 158 um and Mid Infrared Emission Lines for Starbursts and AGN